helpme: come fissare un id alsa ad una specifica porta USB su Squeeze
Ciao, ho 2 schede audio USB identiche che funzionano alla perfezione sotto linux ma ovviamente se riavvio il sistema o le tolgo e reinserisco l'id preso dal dispositivo cambia e questo non deve succedere.
Ho provato il primo script http://alsa.opensrc.org/Udev chiamato A working example ma squeeze non rinomina un bel niente...
Successivamente ho fatto varie prove che vi incollo (non ridete di me :) non ho pratica con udev)
# KERNEL=="2-2", SUBSYSTEM=="usb", ACTION="" DRIVER=="usb", SYMLINK="test"
# KERNEL=="controlC[0-9]*", SUBSYSTEM=="usb", ACTION="" SYMLINK="snd/controlC9"
# KERNEL=="2-2:1.0", SUBSYSTEM=="usb", ACTION="" DRIVER=="usb", SYMLINK="snd/controlC9"
# KERNEL=="2-2:1.1", SUBSYSTEM=="usb", ACTION="" DRIVER=="usb", SYMLINK="snd/pcmC9D0c"
# KERNEL=="2-2:1.2", SUBSYSTEM=="usb", ACTION="" DRIVER=="usb", SYMLINK="snd/pcmC9D0p"
# KERNEL=="2-2:1.0", SUBSYSTEM=="usb", ACTION="" DRIVER=="usb", SYMLINK="snd/controlC9"
KERNEL=="controlC0", ACTION="" DRIVERS=="snd", NAME="snd/controlC9"
Inutile dire che non funziona... l'unica cosa che sono riuscito a fare e creare un symlink ma non è quello che serve a me, rinominare i dispositivi niente da fare
Per farvi capire meglio a me "basta" poter associare una o pià porte USB specifiche ad un device d alsa sempre uguale che deciderò io facendolo apparire in /proc/asound/devices
Incollo sotto dele info che spero possano risultare utili
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udevadm info --query all --path /sys/bus/usb/devices/2-2 --attribute-walk
Udevadm info starts with the device specified by the devpath and then
walks up the chain of parent devices. It prints for every device
found, all possible attributes in the udev rules key format.
A rule to match, can be composed by the attributes of the device
and the attributes from one single parent device.
looking at device '/devices/pci0000:00/0000:00:10.0/usb2/2-2':
KERNEL=="2-2"
SUBSYSTEM=="usb"
DRIVER=="usb"
ATTR{configuration}==""
ATTR{bNumInterfaces}==" 4"
ATTR{bConfigurationValue}=="1"
ATTR{bmAttributes}=="80"
ATTR{bMaxPower}=="100mA"
ATTR{urbnum}=="63"
ATTR{idVendor}=="08bb"
ATTR{idProduct}=="2902"
ATTR{bcdDevice}=="0100"
ATTR{bDeviceClass}=="00"
ATTR{bDeviceSubClass}=="00"
ATTR{bDeviceProtocol}=="00"
ATTR{bNumConfigurations}=="1"
ATTR{bMaxPacketSize0}=="8"
ATTR{speed}=="12"
ATTR{busnum}=="2"
ATTR{devnum}=="2"
ATTR{version}==" 1.10"
ATTR{maxchild}=="0"
ATTR{quirks}=="0x0"
ATTR{authorized}=="1"
ATTR{manufacturer}=="Burr-Brown from TI "
ATTR{product}=="USB Audio CODEC "
looking at parent device '/devices/pci0000:00/0000:00:10.0/usb2':
KERNELS=="usb2"
SUBSYSTEMS=="usb"
DRIVERS=="usb"
ATTRS{configuration}==""
ATTRS{bNumInterfaces}==" 1"
ATTRS{bConfigurationValue}=="1"
ATTRS{bmAttributes}=="e0"
ATTRS{bMaxPower}==" 0mA"
ATTRS{urbnum}=="36"
ATTRS{idVendor}=="1d6b"
ATTRS{idProduct}=="0001"
ATTRS{bcdDevice}=="0206"
ATTRS{bDeviceClass}=="09"
ATTRS{bDeviceSubClass}=="00"
ATTRS{bDeviceProtocol}=="00"
ATTRS{bNumConfigurations}=="1"
ATTRS{bMaxPacketSize0}=="64"
ATTRS{speed}=="12"
ATTRS{busnum}=="2"
ATTRS{devnum}=="1"
ATTRS{version}==" 1.10"
ATTRS{maxchild}=="2"
ATTRS{quirks}=="0x0"
ATTRS{authorized}=="1"
ATTRS{manufacturer}=="Linux 2.6.32-5-686 uhci_hcd"
ATTRS{product}=="UHCI Host Controller"
ATTRS{serial}=="0000:00:10.0"
ATTRS{authorized_default}=="1"
looking at parent device '/devices/pci0000:00/0000:00:10.0':
KERNELS=="0000:00:10.0"
SUBSYSTEMS=="pci"
DRIVERS=="uhci_hcd"
ATTRS{vendor}=="0x1106"
ATTRS{device}=="0x3038"
ATTRS{subsystem_vendor}=="0x1043"
ATTRS{subsystem_device}=="0x3038"
ATTRS{class}=="0x0c0300"
ATTRS{irq}=="21"
ATTRS{local_cpus}=="ffffffff"
ATTRS{local_cpulist}=="0-31"
ATTRS{modalias}=="pci:v00001106d00003038sv00001043sd00003038bc0Csc03i00"
ATTRS{enable}=="1"
ATTRS{broken_parity_status}=="0"
ATTRS{msi_bus}==""
looking at parent device '/devices/pci0000:00':
KERNELS=="pci0000:00"
SUBSYSTEMS==""
DRIVERS==""
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/proc/asound# ls
card0 card1 card2 cards default default_1 devices hwdep modules oss pcm seq timers V8237 version
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/dev/snd# ls
by-id by-path controlC0 controlC1 controlC2 pcmC0D0c pcmC0D0p pcmC0D1c pcmC0D1p pcmC1D0c pcmC1D0p pcmC2D0c pcmC2D0p seq timer
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dmesg
[ 1.520541] usb usb4: New USB device found, idVendor=1d6b, idProduct=0001
[ 1.520545] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 1.520549] usb usb4: Product: UHCI Host Controller
[ 1.520552] usb usb4: Manufacturer: Linux 2.6.32-5-686 uhci_hcd
[ 1.520555] usb usb4: SerialNumber: 0000:00:10.2
[ 1.520909] usb usb4: configuration #1 chosen from 1 choice
[ 1.521101] hub 4-0:1.0: USB hub found
[ 1.521126] hub 4-0:1.0: 2 ports detected
[ 4285.848016] usb 2-1: new full speed USB device using uhci_hcd and address 3
[ 4286.169823] usb 2-1: New USB device found, idVendor=08bb, idProduct=2902
[ 4286.169830] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 4286.169834] usb 2-1: Product: USB Audio CODEC
[ 4286.169837] usb 2-1: Manufacturer: Burr-Brown from TI
[ 4286.170060] usb 2-1: configuration #1 chosen from 1 choice
[ 4286.225195] input: Burr-Brown from TI USB Audio CODEC as /devices/pci0000:00/0000:00:10.0/usb2/2-1/2-1:1.3/input/input5
[ 4286.225961] generic-usb 0003:08BB:2902.0002: input,hidraw1: USB HID v1.00 Device [Burr-Brown from TI USB Audio CODEC ] on usb-0000:00:10.0-1/input3
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Ogni aiuto è ben accetto :)
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