[alsa-devel] X-Fi notebook support

[The Source]

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'