Hi Clemens,
When I try that, I see the following in the dmesg log:
[ 2.963091] usb 3-3.2: New USB device found, idVendor=0499, idProduct=150e [ 2.963093] usb 3-3.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 2.963094] usb 3-3.2: Product: Steinberg UR44 [ 2.963095] usb 3-3.2: Manufacturer: Yamaha Corporation [ 2.963988] nvidia 0000:01:00.0: irq 31 for MSI/MSI-X [ 2.964094] snd-usb-audio 3-3.2:1.0: checking PCM interface [ 2.964104] snd-usb-audio: probe of 3-3.2:1.0 failed with error -5 [ 2.966339] snd-usb-audio 3-3.2:1.1: checking PCM interface [ 2.966341] snd-usb-audio 3-3.2:1.1: altsets found [ 2.966342] snd-usb-audio 3-3.2:1.1: endpoint found [ 2.966343] snd-usb-audio 3-3.2:1.1: iso found [ 2.966344] snd-usb-audio 3-3.2:1.1: descriptors found [ 2.968544] usb 3-3.2:1.0: checking PCM interface [ 2.968546] usb 3-3.2:1.2: checking PCM interface [ 2.968547] usb 3-3.2:1.2: altsets found [ 2.968547] usb 3-3.2:1.2: endpoint found [ 2.968548] usb 3-3.2:1.2: iso found [ 2.968549] usb 3-3.2:1.2: descriptors found [ 2.970657] usb 3-3.2:1.3: checking PCM interface [ 2.970666] usb 3-3.2:1.4: checking PCM interface [ 2.970930] snd-usb-audio: probe of 3-3.2:1.1 failed with error -5 [ 2.974643] systemd-udevd[569]: Failed to apply ACL on /dev/snd/pcmC3D0p: No such file or directory [ 2.974694] systemd-udevd[568]: error opening ATTR{/sys/devices/pci0000:00/0000:00:14.0/usb3/3-3/3-3.2/3-3.2:1.1/sound/card3/controlC3/../uev ent} for writing: No such file or directory [ 2.974710] systemd-udevd[571]: Failed to apply ACL on /dev/snd/midiC3D0: No such file or directory [ 2.974779] systemd-udevd[568]: Failed to apply ACL on /dev/snd/controlC3: No such file or directory [ 2.975019] systemd-udevd[570]: Failed to apply ACL on /dev/snd/pcmC3D0c: No such file or directory
Thanks,
Cyrus
On 11/04/2014 01:00 AM, Clemens Ladisch wrote:
Cyrus Harmon wrote:
On Mar 11, 2014, at 1:31 AM, Clemens Ladisch wrote:
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?
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
Please try the patch below to get more information in the log.
Regards, Clemens
--- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -196,19 +196,23 @@ * future ones might change, so ensure that we fail silently if the * interface doesn't look exactly right. */
dev_info(&iface->dev, "checking PCM interface\n");
/* must have a non-zero altsetting for streaming */ if (iface->num_altsetting < 2) return -ENODEV;
dev_info(&iface->dev, "altsets found\n"); alts = &iface->altsetting[1]; altsd = get_iface_desc(alts);
/* must have an isochronous endpoint for streaming */ if (altsd->bNumEndpoints < 1) return -ENODEV;
dev_info(&iface->dev, "endpoint found\n"); epd = get_endpoint(alts, 0); if (!usb_endpoint_xfer_isoc(epd)) return -ENODEV;
dev_info(&iface->dev, "iso found\n");
/* must have format descriptors */ ashd = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL,
@@ -219,6 +223,7 @@ !fmtd || fmtd->bLength < 8) return -ENODEV;
- dev_info(&iface->dev, "descriptors found\n"); return create_standard_audio_quirk(chip, iface, driver, NULL); }