mirror of
https://github.com/fhem/fhem-mirror.git
synced 2025-05-02 06:55:26 +00:00
750 lines
30 KiB
Perl
750 lines
30 KiB
Perl
##############################################
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# $Id$
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package main;
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use strict;
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use warnings;
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use Time::HiRes qw(gettimeofday);
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#use Device::SMBus;
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#my $clientsI2C = ":I2C_PC.*:I2C_SHT21:I2C_MCP23017:I2C_BMP180:";
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my @clients = qw(
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I2C_LCD
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I2C_DS1307
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I2C_PC.*
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I2C_MCP23017
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I2C_BMP180
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I2C_SHT21
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I2C_TSL2561
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);
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my $gpioprg = "/usr/local/bin/gpio"; #WiringPi GPIO utility
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my $I2C_SLAVE = 0x0703; #Variable for IOCTL (set I2C slave address)
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#my %matchListI2C = ( #kann noch weg?
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# "1:I2C_PCF8574"=> ".*",
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# "2:FHT" => "^81..(04|09|0d)..(0909a001|83098301|c409c401)..",
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#);
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my $libcheck_SMBus = 1;
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my $check_ioctl_ph = 1;
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sub RPII2C_Initialize($) {
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my ($hash) = @_;
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eval "use Device::SMBus;";
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$libcheck_SMBus = 0 if($@);
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eval {require "sys/ioctl.ph"};
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$check_ioctl_ph = 0 if($@);
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# Provider
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$hash->{Clients} = join (':',@clients);
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#$hash->{WriteFn} = "RPII2C_Write"; #wird vom client per IOWrite($@) aufgerufen
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$hash->{I2CWrtFn} = "RPII2C_Write"; #zum testen als alternative fuer IOWrite
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# Normal devices
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$hash->{DefFn} = "RPII2C_Define";
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$hash->{UndefFn} = "RPII2C_Undef";
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$hash->{GetFn} = "RPII2C_Get";
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$hash->{SetFn} = "RPII2C_Set";
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$hash->{AttrFn} = "RPII2C_Attr";
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$hash->{NotifyFn} = "RPII2C_Notify";
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$hash->{AttrList}= "do_not_notify:1,0 ignore:1,0 showtime:1,0 " .
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"$readingFnAttributes";
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$hash->{AttrList} .= " useHWLib:IOCTL,SMBus " if( $libcheck_SMBus && $check_ioctl_ph);
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$hash->{AttrList} .= " swap_i2c0:off,on";
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}
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#####################################
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sub RPII2C_Define($$) { #
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my ($hash, $def) = @_;
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my @a = split("[ \t][ \t]*", $def);
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unless(@a == 3) {
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my $msg = "wrong syntax: define <name> RPII2C <0|1>";
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Log3 undef, 2, $msg;
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return $msg;
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}
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$hash->{SMBus_exists} = $libcheck_SMBus if($libcheck_SMBus);
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$hash->{ioctl_ph_exists} = $check_ioctl_ph if($check_ioctl_ph);
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my $name = $a[0];
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my $dev = $a[2];
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if ($check_ioctl_ph) {
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$hash->{hwfn} = \&RPII2C_HWACCESS_ioctl;
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} elsif ($libcheck_SMBus) {
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$hash->{hwfn} = \&RPII2C_HWACCESS;
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} else {
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return $name . ": Error! no library for Hardware access installed";
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}
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my $device = "/dev/i2c-".$dev;
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if ( RPII2C_CHECK_I2C_DEVICE($device) ) {
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Log3 $hash, 3, "$hash->{NAME}: file $device not accessible try to use gpio utility to fix it";
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if ( defined(my $ret = RPII2C_CHECK_GPIO_UTIL($gpioprg)) ) {
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Log3 $hash, 1, "$hash->{NAME}: " . $ret if $ret;
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} else { #I2C Devices mit gpio utility fuer FHEM User lesbar machen
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my $exp = $gpioprg.' load i2c';
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$exp = `$exp`;
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}
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}
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$hash->{NOTIFYDEV} = "global";
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#$hash->{Clients} = $clientsI2C;
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#$hash->{MatchList} = \%matchListI2C;
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if($dev eq "none") {
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Log3 $name, 1, "$name device is none, commands will be echoed only";
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$attr{$name}{dummy} = 1;
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return undef;
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}
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my $check = RPII2C_CHECK_I2C_DEVICE($device);
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return $name . $check if $check;
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$hash->{DeviceName} = $device;
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$hash->{STATE} = "initialized";
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return undef;
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}
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#####################################
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sub RPII2C_Notify { #
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my ($hash,$dev) = @_;
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my $name = $hash->{NAME};
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my $type = $hash->{TYPE};
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if( grep(m/^(INITIALIZED|REREADCFG)$/, @{$dev->{CHANGED}}) ) {
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RPII2C_forall_clients($hash,\&RPII2C_Init_Client,undef);;
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} elsif( grep(m/^SAVE$/, @{$dev->{CHANGED}}) ) {
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}
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}
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#####################################
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sub RPII2C_forall_clients($$$) { #
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my ($hash,$fn,$args) = @_;
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foreach my $d ( sort keys %main::defs ) {
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if ( defined( $main::defs{$d} )
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&& defined( $main::defs{$d}{IODev} )
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&& $main::defs{$d}{IODev} == $hash ) {
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&$fn($main::defs{$d},$args);
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}
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}
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return undef;
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}
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#####################################
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sub RPII2C_Init_Client($@) { #
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my ($hash,$args) = @_;
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if (!defined $args and defined $hash->{DEF}) {
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my @a = split("[ \t][ \t]*", $hash->{DEF});
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$args = \@a;
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}
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my $name = $hash->{NAME};
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Log3 $name,5,"im init client fuer $name ";
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my $ret = CallFn($name,"InitFn",$hash,$args);
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if ($ret) {
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Log3 $name,2,"error initializing '".$hash->{NAME}."': ".$ret;
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}
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}
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#####################################
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sub RPII2C_Undef($$) { #
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my ($hash, $arg) = @_;
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my $name = $hash->{NAME};
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foreach my $d (sort keys %defs) {
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if(defined($defs{$d}) &&
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defined($defs{$d}{IODev}) &&
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$defs{$d}{IODev} == $hash)
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{
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Log3 $name, 3, "deleting port for $d";
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delete $defs{$d}{IODev};
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}
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}
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return undef;
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}
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#####################################
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sub RPII2C_Attr(@){
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my (undef, $name, $attr, $val) = @_;
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my $hash = $defs{$name};
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if ($attr && $attr eq 'useHWLib') {
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$hash->{hwfn} = \&RPII2C_HWACCESS_ioctl if $val eq "IOCTL";
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$hash->{hwfn} = \&RPII2C_HWACCESS if $val eq "SMBus";
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} elsif ($attr && $attr eq 'swap_i2c0' && defined($val)) {
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RPII2C_SWAPI2C0($hash,$val);
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}
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return undef;
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}
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#####################################
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sub RPII2C_Set($@) { #writeBlock noch nicht fertig
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my ($hash, @a) = @_;
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my $name = shift @a;
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my $type = shift @a;
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my @sets = ('writeByte', 'writeByteReg', 'writeBlock'); #, 'writeNBlock');
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return "Unknown argument $type, choose one of " . join(" ", @sets) if @a < 2;
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foreach (@a) { #Hexwerte pruefen und in Dezimalwerte wandeln
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return "$name: $_ is no 1byte hexadecimal value" if $_ !~ /^(0x|)[0-9A-F]{1,2}$/xi ;
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$_ = hex;
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}
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my $i2ca = shift @a;
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return "$name: I2C Address not valid" unless ($i2ca > 3 && $i2ca < 128); #pruefe auf Hexzahl zwischen 4 und 7F
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my $i2chash = { i2caddress => $i2ca, direction => "i2cwrite" };
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my ($reg, $nbyte, $data) = undef;
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if ($type eq "writeByte") {
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$data = join(" ", @a);
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} elsif ($type eq "writeByteReg") {
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$reg = shift @a;
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$data = join(" ", @a);
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} elsif ($type eq "writeBlock") {
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$reg = shift @a;
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$nbyte = int(@a);
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return "$name maximal blocksize (32byte) exeeded" if $nbyte > 32;
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$data = join(" ", @a);
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$i2chash->{direction} = "i2cblockwrite";
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#####kommt weg da sinnlos??!!! Achtung $nbyte stimmt derzeit nicht
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# } elsif ($type eq "writeNBlock") {
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# $reg = shift @a;
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# return "$name register address must be a hexvalue" if (!defined($reg) || $reg !~ /^(0x|)[0-9A-F]{1,4}$/xi);
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# $nbyte = shift @a;
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# return "$name number of bytes must be decimal value" if (!defined($nbyte) || $nbyte !~ /^[0-9]{1,2}$/);
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# return "$name data values must be n times number of bytes" if (int(@a) % $nbyte != 0);
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# $data = join(" ", @a);
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#########################################################################
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}else {
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return "Unknown argument $type, choose one of " . join(" ", @sets);
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}
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$i2chash->{reg} = $reg if defined($reg); #startadresse zum lesen
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$i2chash->{nbyte} = $nbyte if defined($nbyte);
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$i2chash->{data} = $data if defined($data);
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&{$hash->{hwfn}}($hash, $i2chash);
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undef $i2chash; #Hash loeschen
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return undef;
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}
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##################################### fertig?
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sub RPII2C_Get($@) { #
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my ($hash, @a) = @_;
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my $nargs = int(@a);
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my $name = $hash->{NAME};
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my @gets = ('read');
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unless ( exists($a[1]) && $a[1] ne "?" && grep {/^$a[1]$/} @gets ) {
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return "Unknown argument $a[1], choose one of " . join(" ", @gets);
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}
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if ($a[1] eq "read") {
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return "use: \"get $name $a[1] <i2cAddress> [<RegisterAddress> [<Number od bytes to get>]]\"" if(@a < 3);
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return "$name: I2C Address not valid" unless ( $a[2] =~ /^(0x|)([0-7]|)[0-9A-F]$/xi);
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return "$name register address must be a hexvalue" if (defined($a[3]) && $a[3] !~ /^(0x|)[0-9A-F]{1,4}$/xi);
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return "$name number of bytes must be decimal value" if (defined($a[4]) && $a[4] !~ /^[0-9]{1,2}$/);
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my $i2chash = { i2caddress => hex($a[2]), direction => "i2cread" };
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$i2chash->{reg} = hex($a[3]) if defined($a[3]); #startadresse zum lesen
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$i2chash->{nbyte} = $a[4] if defined($a[4]);
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#Log3 $hash, 1, "Reg: ". $i2chash->{reg};
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#my $status = RPII2C_HWACCESS_ioctl($hash, $i2chash);
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my $status = &{$hash->{hwfn}}($hash, $i2chash);
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#my $received = join(" ", @{$i2chash->{received}}); #als Array
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my $received = $i2chash->{received}; #als Scalar
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undef $i2chash; #Hash loeschen
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return (defined($received) ? "received : " . $received ." | " : "" ) . " transmission: $status";
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}
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return undef;
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}
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#####################################
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sub RPII2C_Write($$) { #wird vom Client aufgerufen
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my ($hash, $clientmsg) = @_;
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my $name = $hash->{NAME};
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my $ankommen = "$name: vom client empfangen";
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foreach my $av (keys %{$clientmsg}) { $ankommen .= "|" . $av . ": " . $clientmsg->{$av}; }
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Log3 $hash, 5, $ankommen;
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if ( $clientmsg->{direction} && $clientmsg->{i2caddress} ) {
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$clientmsg->{$name . "_" . "SENDSTAT"} = &{$hash->{hwfn}}($hash, $clientmsg);
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#$clientmsg->{$name . "_" . "SENDSTAT"} = RPII2C_HWACCESS($hash, $clientmsg);
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}
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foreach my $d ( sort keys %main::defs ) { #zur Botschaft passenden Clienten ermitteln geht auf Client: I2CRecFn
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#Log3 $hash, 1, "d: $d". ($main::defs{$d}{IODev}? ", IODev: $main::defs{$d}{IODev}":"") . ($main::defs{$d}{I2C_Address} ? ", I2C: $main::defs{$d}{I2C_Address}":"") . ($clientmsg->{i2caddress} ? " CI2C: $clientmsg->{i2caddress}" : "");
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if ( defined( $main::defs{$d} )
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&& defined( $main::defs{$d}{IODev} ) && $main::defs{$d}{IODev} == $hash
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&& defined( $main::defs{$d}{I2C_Address} ) && defined($clientmsg->{i2caddress})
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&& $main::defs{$d}{I2C_Address} eq $clientmsg->{i2caddress} ) {
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my $chash = $main::defs{$d};
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Log3 $hash, 5, "$name ->Client gefunden: $d". ($main::defs{$d}{I2C_Address} ? ", I2Caddress: $main::defs{$d}{I2C_Address}":"") . ($clientmsg->{data} ? " Data: $clientmsg->{data}" : "");
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CallFn($d, "I2CRecFn", $chash, $clientmsg);
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undef $clientmsg #Hash loeschen nachdem Daten verteilt wurden
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}
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}
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return undef;
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}
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#####################################
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#FRM_forall_clients($$$)
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#{
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# my ($hash,$fn,$args) = @_;
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# foreach my $d ( sort keys %main::defs ) {
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# if ( defined( $main::defs{$d} )
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# && defined( $main::defs{$d}{IODev} )
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# && $main::defs{$d}{IODev} == $hash ) {
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# &$fn($main::defs{$d},$args); #funktion mit Varianblennamen von $fn ausfuehren
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# }
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# }
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# return undef;
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#}
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#####################################
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sub RPII2C_CHECK_I2C_DEVICE {
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my ($dev) = @_;
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my $ret = undef;
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if(-e $dev) {
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if(-r $dev) {
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unless(-w $dev) {
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$ret = ': Error! I2C device not writable: '.$dev . '. Please install wiringpi or change access rights for fhem user';
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}
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} else {
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$ret = ': Error! I2C device not readable: '.$dev . '. Please install wiringpi or change access rights for fhem user';
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}
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} else {
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$ret = ': Error! I2C device not found: ' .$dev . '. Please check kernelmodules must loaded: i2c_bcm2708, i2c_dev';
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}
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return $ret;
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}
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sub RPII2C_CHECK_GPIO_UTIL {
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my ($gpioprg) = @_;
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my $ret = undef;
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if(-e $gpioprg) {
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if(-x $gpioprg) {
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unless(-u $gpioprg) {
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$ret = "file $gpioprg is not setuid";
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}
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} else {
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$ret = "file $gpioprg is not executable";
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}
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} else {
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$ret = "file $gpioprg doesnt exist";
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}
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return $ret;
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}
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sub RPII2C_SWAPI2C0 {
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my ($hash,$set) = @_;
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unless (defined(my $ret = RPII2C_CHECK_GPIO_UTIL($gpioprg))) {
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if (defined($set) && $set eq "on") {
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system "$gpioprg -g mode 0 in";
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system "$gpioprg -g mode 1 in";
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system "$gpioprg -g mode 28 ALT0";
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system "$gpioprg -g mode 29 ALT0";
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} else {
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system "$gpioprg -g mode 28 in";
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system "$gpioprg -g mode 29 in";
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system "$gpioprg -g mode 0 ALT0";
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system "$gpioprg -g mode 1 ALT0";
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}
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} else {
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Log3 $hash, 1, $hash->{NAME} . ": " . $ret if $ret;
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}
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return
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}
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sub RPII2C_HWACCESS($$) {
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my ($hash, $clientmsg) = @_;
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my $status = "error";
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my $inh = undef;
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Log3 $hash, 5, "$hash->{NAME}: HWaccess I2CAddr: " . sprintf("0x%.2X", $clientmsg->{i2caddress});
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my $dev = Device::SMBus->new(
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I2CBusDevicePath => $hash->{DeviceName},
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I2CDeviceAddress => hex( sprintf("%.2X", $clientmsg->{i2caddress}) ),
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);
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if (defined($clientmsg->{nbyte}) && defined($clientmsg->{reg}) && defined($clientmsg->{data}) && $clientmsg->{direction} eq "i2cblockwrite") { #Registerblock beschreiben
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my @data = split(" ", $clientmsg->{data});
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my $dataref = \@data;
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$inh = $dev->writeBlockData( $clientmsg->{reg} , $dataref );
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my $wr = join(" ", @{$dataref});
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Log3 $hash, 5, "$hash->{NAME}: Block schreiben Register: " . sprintf("0x%.2X", $clientmsg->{reg}) . " Inhalt: " . $wr . " N: ". int(@data) ." Returnvar.: $inh";
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$status = "Ok" if $inh == 0;
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#kommt wieder weg#################
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# } elsif (defined($clientmsg->{nbyte}) && defined($clientmsg->{reg}) && defined($clientmsg->{data}) && $clientmsg->{direction} eq "i2cwrite") { #Registerbereich (mehrfach) beschreiben
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# my @data = split(" ", $clientmsg->{data});
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# foreach (0..$#data) {
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# my $i = $_ -( int($_ / $clientmsg->{nbyte}) * $clientmsg->{nbyte} );
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# $inh = $dev->writeByteData( ($clientmsg->{reg} + $i ) ,$data[$_]);
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# Log3 $hash, 5, "$hash->{NAME} NReg schreiben; Reg: " . ($clientmsg->{reg} + $i) . " Inh: " . $data[$_] . " Returnvar.: $inh";
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# last if $inh != 0;
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# $status = "Ok" if $inh == 0;
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# }
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#hier Mehrfachbeschreibung eines Registers noch entfernen und dafuer Bereich mit Registeroperationen beschreiben
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} elsif (defined($clientmsg->{reg}) && defined($clientmsg->{data}) && $clientmsg->{direction} eq "i2cwrite") { #Register beschreiben
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my @data = split(" ", $clientmsg->{data});
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foreach (@data) {
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$inh = $dev->writeByteData($clientmsg->{reg},$_);
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Log3 $hash, 5, "$hash->{NAME}; Register ".sprintf("0x%.2X", $clientmsg->{reg})." schreiben - Inhalt: " .sprintf("0x%.2X",$_) . " Returnvar.: $inh";
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last if $inh != 0;
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$status = "Ok" if $inh == 0;
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}
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} elsif (defined($clientmsg->{data}) && $clientmsg->{direction} eq "i2cwrite") { #Byte(s) schreiben
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my @data = split(" ", $clientmsg->{data});
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foreach (@data) {
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$inh = $dev->writeByte($_);
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Log3 $hash, 5, "$hash->{NAME} Byte schreiben; Inh: " . $_ . " Returnvar.: $inh";
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last if $inh != 0;
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$status = "Ok" if $inh == 0;
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}
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} elsif (defined($clientmsg->{reg}) && $clientmsg->{direction} eq "i2cread") { #Register lesen
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my $nbyte = defined($clientmsg->{nbyte}) ? $clientmsg->{nbyte} : 1;
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my $rmsg = "";
|
||
for (my $n = 0; $n < $nbyte; $n++) {
|
||
$inh = $dev->readByteData($clientmsg->{reg} + $n );
|
||
Log3 $hash, 5, "$hash->{NAME}; Register ".sprintf("0x%.2X", $clientmsg->{reg} + $n )." lesen - Inhalt: ".sprintf("0x%.2X",$inh);
|
||
last if ($inh < 0);
|
||
#$rmsg .= sprintf("%.2X",$inh);
|
||
$rmsg .= $inh;
|
||
$rmsg .= " " if $n <= $nbyte;
|
||
$status = "Ok" if ($n + 1) == $nbyte;
|
||
}
|
||
#@{$clientmsg->{received}} = split(" ", $rmsg) if($rmsg); #Daten als Array uebertragen
|
||
$clientmsg->{received} = $rmsg if($rmsg); #Daten als Scalar uebertragen
|
||
} elsif ($clientmsg->{direction} eq "i2cread") { #Byte lesen #Byte lesen
|
||
my $nbyte = defined($clientmsg->{nbyte}) ? $clientmsg->{nbyte} : 1;
|
||
my $rmsg = "";
|
||
for (my $n = 0; $n < $nbyte; $n++) {
|
||
$inh = $dev->readByte();
|
||
Log3 $hash, 5, "$hash->{NAME} Byte lesen; Returnvar.: $inh";
|
||
last if ($inh < 0);
|
||
$rmsg .= $inh;
|
||
$rmsg .= " " if $n <= $nbyte;
|
||
$status = "Ok" if ($n + 1) == $nbyte;
|
||
}
|
||
#@{$clientmsg->{received}} = split(" ", $rmsg) if($rmsg); #Daten als Array uebertragen
|
||
$clientmsg->{received} = $rmsg if($rmsg); #Daten als Scalar uebertragen
|
||
}
|
||
$hash->{STATE} = $status;
|
||
$hash->{ERRORCNT} = defined($hash->{ERRORCNT}) ? $hash->{ERRORCNT} += 1 : 1 if $status ne "Ok";
|
||
$clientmsg->{$hash->{NAME} . "_" . "RAWMSG"} = $inh;
|
||
return $status;
|
||
}
|
||
#####################
|
||
|
||
sub RPII2C_HWACCESS_ioctl($$) {
|
||
my ($hash, $clientmsg) = @_;
|
||
my $status = "error";
|
||
Log3 $hash, 5, "$hash->{NAME}: HWaccess I2CAddr: " . sprintf("0x%.2X", $clientmsg->{i2caddress});
|
||
my ($fh, $msg) = undef;
|
||
|
||
my $ankommen = "$hash->{NAME}: vom client empfangen";
|
||
foreach my $av (keys %{$clientmsg}) { $ankommen .= "|" . $av . ": " . $clientmsg->{$av}; }
|
||
Log3 $hash, 5, $ankommen;
|
||
|
||
my $i2caddr = hex(sprintf "%x", $clientmsg->{i2caddress});
|
||
if ( sysopen(my $fh, $hash->{DeviceName}, O_RDWR) != 1) { #Datei oeffnen
|
||
Log3 $hash, 3, "$hash->{NAME}: HWaccess sysopen failure: $!"
|
||
} elsif( not defined( ioctl($fh,$I2C_SLAVE,$i2caddr) ) ) { #I2C Adresse per ioctl setzen
|
||
Log3 $hash, 3, "$hash->{NAME}: HWaccess (0x".unpack( "H2",pack "C", $clientmsg->{i2caddress}).") ioctl failure: $!"
|
||
} elsif (defined($clientmsg->{nbyte}) && defined($clientmsg->{reg}) && defined($clientmsg->{data}) && $clientmsg->{direction} eq "i2cblockwrite") { #Registerblock beschreiben
|
||
my $data = chr($clientmsg->{reg});
|
||
foreach (split(" ", $clientmsg->{data})) {
|
||
$data .= chr($_);
|
||
}
|
||
my $retval = syswrite($fh, $data, length($data));
|
||
unless (defined($retval) && $retval == length($data)) {
|
||
Log3 $hash, 3, "$hash->{NAME}: HWaccess blockweise nach 0x".unpack( "H2",pack "C", $clientmsg->{i2caddress})." schreiben, Reg: 0x". unpack( "H2",pack "C", $clientmsg->{reg}) . " Inh: $clientmsg->{data}, laenge: ".length($data)."| -> syswrite failure: $!";
|
||
} else {
|
||
$status = "Ok";
|
||
Log3 $hash, 5, "$hash->{NAME}: HWaccess block schreiben, Reg: 0x". unpack( "H2",pack "C", $clientmsg->{reg}) . " Inh(dec):|$clientmsg->{data}|, laenge: |".length($data)."|";
|
||
}
|
||
#(my $datah = $data) =~ s/(.|\n)/sprintf("%.2X ",ord($1))/eg;
|
||
#Log3 $hash, 1, "$hash->{NAME}: HWaccess block schreiben data:|$clientmsg->{data}|, laenge: |".length($data)."|";
|
||
#$status = "Ok" if $resulw == length($data);
|
||
|
||
} elsif (defined($clientmsg->{data}) && $clientmsg->{direction} eq "i2cwrite") { #byteweise beschreiben
|
||
my $reg = undef;
|
||
$reg = $clientmsg->{reg} if (defined($clientmsg->{reg}));
|
||
$status = "Ok";
|
||
foreach (split(" ", $clientmsg->{data})) {
|
||
my $data = (defined($reg) ? chr($reg++) : "") . chr($_);
|
||
my $retval = syswrite($fh, $data, length($data));
|
||
unless (defined($retval) && $retval == length($data)) {
|
||
Log3 $hash, 3, "$hash->{NAME}: HWaccess byteweise nach 0x".unpack( "H2",pack "C", $clientmsg->{i2caddress})." schreiben, ". (defined($reg) ? "Reg: 0x". unpack( "H2",pack "C", ($reg - 1)) . " " : "")."Inh: 0x" . unpack( "H2",pack "C", $_) .", laenge: ".length($data)."| -> syswrite failure: $!";
|
||
$status = "error";
|
||
last;
|
||
}
|
||
Log3 $hash, 5, "$hash->{NAME}: HWaccess byteweise schreiben, ". (defined($reg) ? "Reg: 0x". unpack( "H2",pack "C", ($reg - 1)) . " " : "")."Inh: 0x" . unpack( "H2",pack "C", $_) .", laenge: ".length($data);
|
||
}
|
||
} elsif ($clientmsg->{direction} eq "i2cread") { #vom I2C lesen
|
||
my $nbyte = defined($clientmsg->{nbyte}) ? $clientmsg->{nbyte} : 1;
|
||
my $rmsg = "";
|
||
foreach (my $n = 0; $n < $nbyte; $n++) {
|
||
if ( defined($clientmsg->{reg}) ) {
|
||
Log3 $hash, 5, "$hash->{NAME}: HWaccess byteweise lesen setze Registerpointer auf " . ($clientmsg->{reg} + $n);
|
||
my $retval = syswrite($fh, chr($clientmsg->{reg} + $n), 1);
|
||
unless (defined($retval) && $retval == 1) {
|
||
Log3 $hash, 3, "$hash->{NAME}: HWaccess byteweise von 0x".unpack( "H2",pack "C", $clientmsg->{i2caddress})." lesen,". (defined($clientmsg->{reg}) ? " Reg: 0x". unpack( "H2",pack "C", ($clientmsg->{reg} + $n)) : "") . " -> syswrite failure: $!" if $!;
|
||
last;
|
||
}
|
||
}
|
||
my $buf = undef;
|
||
my $retval = sysread($fh, $buf, 1);
|
||
unless (defined($retval) && $retval == 1) {
|
||
Log3 $hash, 3, "$hash->{NAME}: HWaccess byteweise von 0x".unpack( "H2",pack "C", $clientmsg->{i2caddress})." lesen,". (defined($clientmsg->{reg}) ? " Reg: 0x". unpack( "H2",pack "C", ($clientmsg->{reg} + $n)) : "") . " -> sysread failure: $!" if $!;
|
||
last;
|
||
}
|
||
$rmsg .= ord($buf);
|
||
$rmsg .= " " if $n <= $nbyte;
|
||
$status = "Ok" if ($n + 1) == $nbyte;
|
||
}
|
||
$clientmsg->{received} = $rmsg if($rmsg); #Daten als Scalar uebertragen
|
||
}
|
||
$hash->{STATE} = $status;
|
||
$hash->{ERRORCNT} = defined($hash->{ERRORCNT}) ? $hash->{ERRORCNT} += 1 : 1 if $status ne "Ok";
|
||
#$clientmsg->{$hash->{NAME} . "_" . "RAWMSG"} = $inh;
|
||
return $status;
|
||
}
|
||
|
||
|
||
=pod
|
||
=begin html
|
||
|
||
<a name="RPII2C"></a>
|
||
<h3>RPII2C</h3>
|
||
<ul>
|
||
<a name="RPII2C"></a>
|
||
Provides access to Raspberry Pi's I2C interfaces for some logical modules and also directly.<br>
|
||
This modul will basically work on every linux system that provides <code>/dev/i2c-x</code>.<br><br>
|
||
|
||
<b>preliminary:</b><br>
|
||
<ul>
|
||
<li>
|
||
load I2C kernel modules:<br>
|
||
open /etc/modules<br>
|
||
<ul><code>sudo nano /etc/modules</code></ul><br>
|
||
add these lines<br>
|
||
<ul><code>
|
||
i2c-dev<br>
|
||
i2c-bcm2708<br>
|
||
</code></ul>
|
||
</li><br>
|
||
|
||
<li>Choose <b>one</b> of the three follwing methodes do grant access to <code>/dev/i2c-*</code> for FHEM user:
|
||
<ul>
|
||
<li>
|
||
<code>sudo apt-get install i2c-tools<br>
|
||
sudo adduser fhem i2c<br>
|
||
sudo reboot</code><br>
|
||
</li><br>
|
||
<li>
|
||
Add following lines into <code>/etc/init.d/fhem</code> before <code>perl fhem.pl</code> line in start or into <code>/etc/rc.local</code>:<br>
|
||
<code>
|
||
sudo chown fhem /dev/i2c-*<br>
|
||
sudo chgrp dialout /dev/i2c-*<br>
|
||
sudo chmod +t /dev/i2c-*<br>
|
||
sudo chmod 660 /dev/i2c-*<br>
|
||
</code>
|
||
</li><br>
|
||
<li>
|
||
Alternatively for Raspberry Pi you can install the gpio utility from <a href="http://wiringpi.com/download-and-install/">WiringPi</a> library change access rights of I2C-Interface<br>
|
||
WiringPi installation is described here: <a href="#RPI_GPIO">RPI_GPIO.</a><br>
|
||
gpio utility will be automaticly used, if installed.<br>
|
||
Important: to use I2C-0 at P5 connector you must use attribute <code>swap_i2c0</code>.<br>
|
||
</li>
|
||
</ul>
|
||
</li><br>
|
||
<li>
|
||
<b>Optional</b>: access via IOCTL will be used if Device::SMBus is not present.<br>
|
||
To access the I2C-Bus via the Device::SMBus module, following steps are necessary:<br>
|
||
<ul><code>sudo apt-get install libmoose-perl<br>
|
||
sudo cpan Device::SMBus</code></ul><br>
|
||
</li>
|
||
</ul>
|
||
<a name="RPII2CDefine"></a><br>
|
||
<b>Define</b>
|
||
<ul>
|
||
<code>define <name> RPII2C <I2C Bus Number></code><br>
|
||
where <code><I2C Bus Number></code> is the number of the I2C bus that should be used (0 or 1)<br><br>
|
||
</ul>
|
||
|
||
<a name="RPII2CSet"></a>
|
||
<b>Set</b>
|
||
<ul>
|
||
<li>
|
||
Write one byte (or more bytes sequentially) directly to an I2C device (for devices that have only one register to write):<br>
|
||
<code>set <name> writeByte <I2C Address> <value></code><br><br>
|
||
</li>
|
||
<li>
|
||
Write n-bytes to an register range (as an series of single register write operations), beginning at the specified register:<br>
|
||
<code>set <name> writeByteReg <I2C Address> <Register Address> <value></code><br><br>
|
||
</li>
|
||
<li>
|
||
Write n-bytes to an register range (as an block write operation), beginning at the specified register:<br>
|
||
<code>set <name> writeBlock <I2C Address> <Register Address> <value></code><br><br>
|
||
</li><br>
|
||
Examples:
|
||
<ul>
|
||
Write 0xAA to device with I2C address 0x60<br>
|
||
<code>set test1 writeByte 60 AA</code><br>
|
||
Write 0xAA to register 0x01 of device with I2C address 0x6E<br>
|
||
<code>set test1 writeByteReg 6E 01 AA</code><br>
|
||
Write 0xAA to register 0x01 of device with I2C address 0x6E, after it write 0x55 to 0x02 as two separate commands<br>
|
||
<code>set test1 writeByteReg 6E 01 AA 55</code><br>
|
||
Write 0xA4 to register 0x03, 0x00 to register 0x04 and 0xDA to register 0x05 of device with I2C address 0x60 as an block command<br>
|
||
<code>set test1 writeBlock 60 03 A4 00 DA</code><br>
|
||
|
||
</ul><br>
|
||
</ul>
|
||
|
||
<a name="RPII2CGet"></a>
|
||
<b>Get</b>
|
||
<ul>
|
||
<code>get <name> read <I2C Address> [<Register Address> [<number of registers>]] </code>
|
||
<br>
|
||
gets value of I2C device's registers<br><br>
|
||
Examples:
|
||
<ul>
|
||
Reads byte from device with I2C address 0x60<br>
|
||
<code>get test1 writeByte 60</code><br>
|
||
Reads register 0x01 of device with I2C address 0x6E.<br>
|
||
<code>get test1 read 6E 01 AA 55</code><br>
|
||
Reads register 0x03 to 0x06 of device with I2C address 0x60.<br>
|
||
<code>get test1 read 60 03 4</code><br>
|
||
</ul><br>
|
||
</ul><br>
|
||
|
||
<a name="RPII2CAttr"></a>
|
||
<b>Attributes</b>
|
||
<ul>
|
||
<li>swap_i2c0<br>
|
||
Swap Raspberry Pi's I2C-0 from J5 to P5 rev. B<br>
|
||
This attribute is for Raspberry Pi only and needs gpio utility from <a href="http://wiringpi.com/download-and-install/">WiringPi</a> library.<br>
|
||
Default: none, valid values: on, off<br><br>
|
||
</li>
|
||
<li>useHWLib<br>
|
||
Change hardware access method.<br>
|
||
Attribute exists only if both access methods are usable<br>
|
||
Default: IOCTL, valid values: IOCTL, SMBus<br><br>
|
||
</li>
|
||
<li><a href="#ignore">ignore</a></li>
|
||
<li><a href="#do_not_notify">do_not_notify</a></li>
|
||
<li><a href="#showtime">showtime</a></li>
|
||
</ul>
|
||
<br>
|
||
</ul>
|
||
|
||
=end html
|
||
|
||
=begin html_DE
|
||
|
||
<a name="RPII2C"></a>
|
||
<h3>RPII2C</h3>
|
||
<ul>
|
||
<a name="RPII2C"></a>
|
||
Ermöglicht den Zugriff auf die I2C Schnittstellen des Raspberry Pi, BBB, Cubie über logische Module. Register von I2C IC's können auch direkt gelesen und geschrieben werden.<br><br>
|
||
Dieses Modul funktioniert grunsätzlich auf allen Linux Systemen, die <code>/dev/i2c-x</code> bereitstellen.<br><br>
|
||
|
||
<b>Vorbereitung:</b><br>
|
||
<ul>
|
||
<li>
|
||
I2C Kernelmodule laden:<br>
|
||
modules Datei öffnen<br>
|
||
<ul><code>sudo nano /etc/modules</code></ul><br>
|
||
folgendes einfügen<br>
|
||
<ul><code>
|
||
i2c-dev<br>
|
||
i2c-bcm2708<br>
|
||
</code></ul>
|
||
</li> <br>
|
||
<li><b>Eine</b> der folgenden drei Möglichkeiten wählen um dem FHEM User Zugriff auf <code>/dev/i2c-*</code> zu geben:
|
||
<ul>
|
||
<li>
|
||
<code>
|
||
sudo apt-get install i2c-tools<br>
|
||
sudo adduser fhem i2c</code><br>
|
||
</li><br>
|
||
<li>
|
||
Folgende Zeilen entweder in die Datei <code>/etc/init.d/fhem</code> vor <code>perl fhem.pl</code> in start, oder in die Datei <code>/etc/rc.local</code> eingefügen:<br>
|
||
<code>
|
||
sudo chown fhem /dev/i2c-*<br>
|
||
sudo chgrp dialout /dev/i2c-*<br>
|
||
sudo chmod +t /dev/i2c-*<br>
|
||
sudo chmod 660 /dev/i2c-*<br>
|
||
</code>
|
||
</li><br>
|
||
<li>
|
||
Für das Raspberry Pi kann alternativ das gpio Utility der <a href="http://wiringpi.com/download-and-install/">WiringPi</a> Bibliothek benutzt werden um FHEM Schreibrechte auf die I2C Schnittstelle zu bekommen.<br>
|
||
WiringPi Installation ist hier beschrieben: <a href="#RPI_GPIO">RPI_GPIO</a><br>
|
||
Das gpio Utility wird, wenn vorhanden, automatisch verwendet<br>
|
||
Wichtig: um den I2C-0 am P5 Stecker des Raspberry nutzen zu k<EFBFBD>nnen muss das Attribut <code>swap_i2c0</code> verwendet werden.<br>
|
||
</li>
|
||
</ul>
|
||
</li><br>
|
||
<li>
|
||
<b>Optional</b>: Hardwarezugriff via IOCTL wird standardmäßig genutzt, wenn Device::SMBus nicht installiert ist<br>
|
||
Soll der Hardwarezugriff über das Perl Modul Device::SMBus erfolgen sind diese Schritte notwendig:<br>
|
||
<ul><code>sudo apt-get install libmoose-perl<br>
|
||
sudo cpan Device::SMBus</code></ul><br>
|
||
</li>
|
||
</ul>
|
||
<a name="RPII2CDefine"></a><br>
|
||
<b>Define</b>
|
||
<ul>
|
||
<code>define <name> RPII2C <I2C Bus Number></code><br>
|
||
Die <code><I2C Bus Number></code> ist die Nummer des I2C Bus an den die I2C IC's angeschlossen werden<br><br>
|
||
</ul>
|
||
|
||
<a name="RPII2CSet"></a>
|
||
<b>Set</b>
|
||
<ul>
|
||
<li>
|
||
Schreibe ein Byte (oder auch mehrere nacheinander) direkt auf ein I2C device (manche I2C Module sind so einfach, das es nicht einmal mehrere Register gibt):<br>
|
||
<code>set <name> writeByte <I2C Address> <value></code><br><br>
|
||
</li>
|
||
<li>
|
||
Schreibe n-bytes auf einen Registerbereich (als Folge von Einzelbefehlen), beginnend mit dem angegebenen Register:<br>
|
||
<code>set <name> writeByteReg <I2C Address> <Register Address> <value></code><br><br>
|
||
</li>
|
||
<li>
|
||
Schreibe n-bytes auf einen Registerbereich (als Blockoperation), beginnend mit dem angegebenen Register:<br>
|
||
<code>set <name> writeBlock <I2C Address> <Register Address> <value></code><br><br>
|
||
</li><br>
|
||
Beispiele:
|
||
<ul>
|
||
Schreibe 0xAA zu Modul mit I2C Addresse 0x60<br>
|
||
<code>set test1 writeByte 60 AA</code><br>
|
||
Schreibe 0xAA zu Register 0x01 des Moduls mit der I2C Adresse 0x6E<br>
|
||
<code>set test1 writeByteReg 6E 01 AA</code><br>
|
||
Schreibe 0xAA zu Register 0x01 des Moduls mit der I2C Adresse 0x6E, schreibe danach 0x55 in das Register 0x02 als einzelne Befehle<br>
|
||
<code>set test1 writeByteReg 6E 01 AA 55</code><br>
|
||
Schreibe 0xA4 zu Register 0x03, 0x00 zu Register 0x04 und 0xDA zu Register 0x05 des Moduls mit der I2C Adresse 0x60 zusammen als ein Blockbefehl<br>
|
||
<code>set test1 writeBlock 60 03 A4 00 DA</code><br>
|
||
</ul><br>
|
||
</ul>
|
||
|
||
<a name="RPII2CGet"></a>
|
||
<b>Get</b>
|
||
<ul>
|
||
<code>get <name> read <I2C Address> [<Register Address> [<number of registers>]] </code>
|
||
<br>
|
||
Auslesen der Registerinhalte des I2C Moduls<br><br>
|
||
Examples:
|
||
<ul>
|
||
Lese Byte vom Modul mit der I2C Adresse 0x60<br>
|
||
<code>get test1 writeByte 60</code><br>
|
||
Lese den Inhalt des Registers 0x01 vom Modul mit der I2C Adresse 0x6E.<br>
|
||
<code>get test1 read 6E 01 AA 55</code><br>
|
||
Lese den Inhalt des Registerbereichs 0x03 bis 0x06 vom Modul mit der I2C Adresse 0x60.<br>
|
||
<code>get test1 read 60 03 4</code><br>
|
||
</ul><br>
|
||
</ul><br>
|
||
|
||
<a name="RPII2CAttr"></a>
|
||
<b>Attribute</b>
|
||
<ul>
|
||
<li>swap_i2c0<br>
|
||
Umschalten von I2C-0 des Raspberry Pi Rev. B von J5 auf P5<br>
|
||
Dieses Attribut ist nur für das Raspberry Pi vorgesehen und benötigt das gpio utility wie unter dem Punkt Vorbereitung beschrieben.<br>
|
||
Standard: keiner, gültige Werte: on, off<br><br>
|
||
</li>
|
||
<li>useHWLib<br>
|
||
Ändern der Methode des Hardwarezugriffs.<br>
|
||
Dieses Attribut existiert nur, wenn beide Zugriffsmethoden verfügbar sind<br>
|
||
Standard: IOCTL, gültige Werte: IOCTL, SMBus<br><br>
|
||
</li>
|
||
<li><a href="#ignore">ignore</a></li>
|
||
<li><a href="#do_not_notify">do_not_notify</a></li>
|
||
<li><a href="#showtime">showtime</a></li>
|
||
</ul>
|
||
<br>
|
||
</ul>
|
||
|
||
=end html_DE
|
||
|
||
1; |