On Mar 11, 2014, at 1:31 AM, Clemens Ladisch clemens@ladisch.de wrote:
Cyrus Harmon wrote:
On Mar 10, 2014, at 8:40 AM, Clemens Ladisch clemens@ladisch.de wrote:
In theory, kernel 3.11 and later should support this device without a quirk entry. I guess it actually does not?
no, the stock kernel doesn’t support this device.
Strange; in theory, the driver should be able to pick up these descriptors.
Are there any error messages in the system log when you plug it in or reload the unpatch snd-usb-audio driver?
Here’s what I get with the unpatched kernel:
Mar 11 02:25:11 cbox kernel: [ 82.426640] usb 2-1.6: new high-speed USB device number 4 using ehci-pci Mar 11 02:25:12 cbox kernel: [ 82.515364] usb 2-1.6: New USB device found, idVendor=0499, idProduct=150e Mar 11 02:25:12 cbox kernel: [ 82.515368] usb 2-1.6: New USB device strings: Mfr=1, Product=2, SerialNumber=0 Mar 11 02:25:12 cbox kernel: [ 82.515370] usb 2-1.6: Product: Steinberg UR44 Mar 11 02:25:12 cbox kernel: [ 82.515372] usb 2-1.6: Manufacturer: Yamaha Corporation Mar 11 02:25:12 cbox kernel: [ 82.518134] snd-usb-audio: probe of 2-1.6:1.0 failed with error -5 Mar 11 02:25:12 cbox kernel: [ 82.523317] snd-usb-audio: probe of 2-1.6:1.1 failed with error -5 Mar 11 02:25:12 cbox mtp-probe: checking bus 2, device 4: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.6" Mar 11 02:25:12 cbox mtp-probe: bus: 2, device: 4 was not an MTP device
thanks for taking a look,
Cyrus
Regards, Clemens _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org http://mailman.alsa-project.org/mailman/listinfo/alsa-devel