Hi,
On 10/04/2014 06:55 PM, shal@free.fr wrote:
I have a Edirol UA-1000 that is supported by Linux using the snd-ua101 module.
...
The "cat /sys/kernel/debug/usb/devices" for my sound card : http://pastebin.com/j4ab9ekZ
Shows:
P: Vendor=0582 ProdID=0044 Rev= 1.07
So I found that the problem is in the quirk.c In the function create_auto_pcm_quirk() There is a check : /* * Most Roland/Yamaha audio streaming interfaces have more or less * standard descriptors, but older devices might lack descriptors, and * future ones might change, so ensure that we fail silently if the * interface doesn't look exactly right. */
/* must have a non-zero altsetting for streaming */ if (iface->num_altsetting < 2) return -ENODEV;
And the iface->num_altsetting value for my card is 1. So The function return an ENODEV. So the caller function snd_usb_audio_probe return an -EIO
In dmesg:
[ 2747.573923] snd-usb-audio: probe of 2-1.3:1.0 failed with error
Your device should not be handled by the generic snd-usb-audio but by the ua101 driver. Are you sure you have CONFIG_SND_USB_UA101 set in your kernel config? What else does dmesg show when you plug in the card?
Daniel