[alsa-devel] X-Fi notebook support

[The Source]

12.01.2010 10:03, The Source пишет:
> 30.12.2009 21:25, The Source пишет:
>> 30.12.2009 19:22, The Source пишет:
>>> 30.12.2009 10:39, The Source пишет:
>>>> Hello. I have some info on that card, but not much. I have 
>>>> discovered that this card is detected connected via USB rather than 
>>>> PCI-E (the slot is ExpressCard). snd_ctxfi uses PCI interfaces 
>>>> right? Can X-Fi support be also added to snd_usb_audio? Or can 
>>>> snd_ctxfi support USB?
>>>>
>>>> lsusb -v output on that card is attached (sorry for duplicate mail, 
>>>> forgot to attach it first time). I now have this card and willing 
>>>> to help to test (or perhaps create) proper driver.
>>> Additional info. The card is partially recognized - Analog Stereo 
>>> Input device is available. But sadly no output.
>>> Also I tested the card in Virtual Box (WinXP 64 guest) and even 
>>> without creative drivers the card is recognized as USB Audio Device 
>>> and works fine. So it seems it's usb audio compliant. I hope this is 
>>> helpful.
>> Hmm, it looks like Input working is the result of my addition to 
>> alsa-kernel/usb/usbquirks.h
>> Recording from mic now works (on very low volume though)
>>
>> /* Creative X-Fi Notebook */
>> {
>>     .match_flags = USB_DEVICE_ID_MATCH_VENDOR | 
>> USB_DEVICE_ID_MATCH_PRODUCT,
>>     .idVendor = 0x041e,
>>     .idProduct = 0x30d2,
>>     .bInterfaceClass = USB_CLASS_AUDIO,
>>     .driver_info = (unsigned long) & (const struct 
>> snd_usb_audio_quirk) {
>>         .vendor_name = "Creative Labs",
>>         .product_name = "X-Fi Notebook",
>>         .ifnum = QUIRK_NO_INTERFACE
>>     }
>> },
>>
>> I tested some other quirk values but nothing else works at all. As 
>> for output - alsamixer actually shows it and allows to change it's 
>> volume, but channel number is not available. For example speaker-test 
>> says 'Error setting hwparams: Invalid argument" and aplay says 
>> "Channel number is not available" on any channel number.
>> alsa-info output is attached.
>> I ask for any help from experienced alsa developer (snd_usb_audio 
>> specifically).
>
> I found out that 6 is the only valid number for channels. Sound is 
> played fine when channels is set to 6. Other values like 2 result in 
> 'invalid argument'
Latest test results: if the card is plugged before system starts, 
everything is fine. All output devices is seen by everyone including 
pulseaudio. No such luck if the card is hotplugged. I wonder why?