Re: [alsa-devel] Huawei K3715 UMTS stick and alsa

Artem Makhutov wrote:

i am wondering if it is possible to write a quirk in usbquirks.h for a Huawei K3715 UMTS stick to make the audio interfaces available in linux.

What kind of audio does this UMTS stick have?

This two interfaces are used for audio (I have sniffed in Windows):

bEndpointAddress 0x83 EP 3 IN bEndpointAddress 0x02 EP 2 OUT

The lsusb output shows that these are bulk endpoints. The snd-usb-audio driver is designed for isochronous endpoints; a simple quirk would not suffice.

The payload of this interfaces is 320 bytes.

How many bytes per second?

Best regards, Clemens