On Monday 21 Sep 2015 11:22:18 maillist@superlative.org wrote:
On Friday 18 Sep 2015 21:03:15 maillist@superlative.org wrote:
I recently got access to a Boss GT-001. This is a small USB audio Interface for guitar with onboard FX which doesn't work with ALSA under Linux Mint 17 (running kernel 3.16.0-38-generic).
<SNIP>
More follow up. I've upgraded the kernel to 4.0.0-040000-generic with no improvement. I've recompiled the usb sound modules with debug support and am getting the following. Note that I'm getting a probe failure with error code -5. Is there any reference anywhere for what these errors are?
Oct 5 13:51:47 KAMDesktop kernel: [ 910.443578] usb 3-1: new high-speed USB device number 6 using ehci-pci Oct 5 13:51:47 KAMDesktop kernel: [ 910.586067] usb 3-1: New USB device found, idVendor=0582, idProduct=0187 Oct 5 13:51:47 KAMDesktop kernel: [ 910.586071] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 Oct 5 13:51:47 KAMDesktop kernel: [ 910.586073] usb 3-1: Product: GT-001 Oct 5 13:51:47 KAMDesktop kernel: [ 910.586075] usb 3-1: Manufacturer: BOSS Oct 5 13:51:47 KAMDesktop kernel: [ 910.586812] snd-usb-audio: probe of 3-1:1.0 failed with error -5 Oct 5 13:51:47 KAMDesktop kernel: [ 910.587438] ALSA stream.c:711 6:1:1: add audio endpoint 0xd Oct 5 13:51:47 KAMDesktop kernel: [ 910.587688] ALSA stream.c:711 6:2:1: add audio endpoint 0x8e Oct 5 13:51:47 KAMDesktop mtp-probe: checking bus 3, device 6: "/sys/devices/pci0000:00/0000:00:1a.7/usb3/3-1" Oct 5 13:51:47 KAMDesktop mtp-probe: bus: 3, device: 6 was not an MTP device Oct 5 13:51:47 KAMDesktop kernel: [ 910.588115] snd-usb-audio: probe of 3-1:1.3 failed with error -5 Oct 5 13:51:47 KAMDesktop kernel: [ 910.603135] ALSA pcm.c:376 setting usb interface 2:1 Oct 5 13:51:47 KAMDesktop kernel: [ 910.603138] ALSA endpoint.c:442 Creating new capture data endpoint #8e Oct 5 13:51:47 KAMDesktop kernel: [ 910.603160] ALSA endpoint.c:821 Setting params for ep #8e (type 0, 8 urbs), ret=0 Oct 5 13:51:47 KAMDesktop kernel: [ 910.606512] ALSA pcm.c:376 setting usb interface 1:1 Oct 5 13:51:47 KAMDesktop kernel: [ 910.606514] ALSA endpoint.c:442 Creating new playback data endpoint #d Oct 5 13:51:47 KAMDesktop kernel: [ 910.606517] ALSA endpoint.c:434 Re-using EP 8e in iface 2,1 @ffff88041cb74028 Oct 5 13:51:47 KAMDesktop kernel: [ 910.606533] ALSA endpoint.c:821 Setting params for ep #d (type 0, 8 urbs), ret=0 Oct 5 13:51:47 KAMDesktop kernel: [ 910.606535] ALSA pcm.c:541 match_endpoint_audioformats: (fmt @ffff8804a98e9ca8) score 2 Oct 5 13:51:47 KAMDesktop kernel: [ 910.606538] ALSA endpoint.c:821 Setting params for ep #8e (type 0, 8 urbs), ret=0 Oct 5 13:51:47 KAMDesktop kernel: [ 910.606539] ALSA pcm.c:229 Starting data EP @ffff8803d6f54028 Oct 5 13:51:47 KAMDesktop kernel: [ 910.606595] ALSA pcm.c:258 Starting sync EP @ffff88041cb74028 Oct 5 13:51:47 KAMDesktop kernel: [ 910.615766] ALSA pcm.c:376 setting usb interface 2:1 Oct 5 13:51:47 KAMDesktop kernel: [ 910.615779] ALSA endpoint.c:434 Re-using EP 8e in iface 2,1 @ffff88041cb74028 Oct 5 13:51:47 KAMDesktop kernel: [ 910.615792] ALSA endpoint.c:786 Unable to change format on ep #8e: already in use Oct 5 13:51:47 KAMDesktop kernel: [ 910.615821] ALSA endpoint.c:434 Re-using EP 8e in iface 2,1 @ffff88041cb74028 Oct 5 13:51:47 KAMDesktop kernel: [ 910.615824] ALSA endpoint.c:786 Unable to change format on ep #8e: already in use Oct 5 13:51:47 KAMDesktop kernel: [ 910.615842] ALSA endpoint.c:434 Re-using EP 8e in iface 2,1 @ffff88041cb74028 Oct 5 13:51:47 KAMDesktop kernel: [ 910.615845] ALSA endpoint.c:786 Unable to change format on ep #8e: already in use Oct 5 13:51:47 KAMDesktop kernel: [ 910.615980] ALSA endpoint.c:434 Re-using EP 8e in iface 2,1 @ffff88041cb74028 Oct 5 13:51:47 KAMDesktop kernel: [ 910.615983] ALSA endpoint.c:786 Unable to change format on ep #8e: already in use Oct 5 13:51:47 KAMDesktop kernel: [ 910.616078] ALSA endpoint.c:434 Re-using EP 8e in iface 2,1 @ffff88041cb74028 Oct 5 13:51:47 KAMDesktop kernel: [ 910.616081] ALSA endpoint.c:786 Unable to change format on ep #8e: already in use Oct 5 13:51:47 KAMDesktop kernel: [ 910.616490] ALSA pcm.c:376 setting usb interface 2:1 Oct 5 13:51:47 KAMDesktop kernel: [ 910.616492] ALSA endpoint.c:434 Re-using EP 8e in iface 2,1 @ffff88041cb74028 Oct 5 13:51:47 KAMDesktop kernel: [ 910.616497] ALSA endpoint.c:786 Unable to change format on ep #8e: already in use Oct 5 13:51:47 KAMDesktop kernel: [ 910.616512] ALSA endpoint.c:434 Re-using EP 8e in iface 2,1 @ffff88041cb74028 Oct 5 13:51:47 KAMDesktop kernel: [ 910.616514] ALSA endpoint.c:786 Unable to change format on ep #8e: already in use Oct 5 13:51:47 KAMDesktop kernel: [ 910.616530] ALSA endpoint.c:434 Re-using EP 8e in iface 2,1 @ffff88041cb74028 Oct 5 13:51:47 KAMDesktop kernel: [ 910.616533] ALSA endpoint.c:786 Unable to change format on ep #8e: already in use Oct 5 13:51:47 KAMDesktop kernel: [ 910.616629] ALSA endpoint.c:434 Re-using EP 8e in iface 2,1 @ffff88041cb74028 Oct 5 13:51:47 KAMDesktop kernel: [ 910.616632] ALSA endpoint.c:786 Unable to change format on ep #8e: already in use Oct 5 13:51:47 KAMDesktop kernel: [ 910.616754] ALSA endpoint.c:434 Re-using EP 8e in iface 2,1 @ffff88041cb74028 Oct 5 13:51:47 KAMDesktop kernel: [ 910.616758] ALSA endpoint.c:786 Unable to change format on ep #8e: already in use Oct 5 13:51:47 KAMDesktop kernel: [ 910.617110] ALSA pcm.c:376 setting usb interface 2:1 Oct 5 13:51:47 KAMDesktop kernel: [ 910.617112] ALSA endpoint.c:434 Re-using EP 8e in iface 2,1 @ffff88041cb74028 Oct 5 13:51:47 KAMDesktop kernel: [ 910.617127] ALSA endpoint.c:786 Unable to change format on ep #8e: already in use Oct 5 13:51:47 KAMDesktop kernel: [ 910.617155] ALSA endpoint.c:434 Re-using EP 8e in iface 2,1 @ffff88041cb74028 Oct 5 13:51:47 KAMDesktop kernel: [ 910.617158] ALSA endpoint.c:786 Unable to change format on ep #8e: already in use Oct 5 13:51:47 KAMDesktop kernel: [ 910.617203] ALSA endpoint.c:434 Re-using EP 8e in iface 2,1 @ffff88041cb74028 Oct 5 13:51:47 KAMDesktop kernel: [ 910.617207] ALSA endpoint.c:786 Unable to change format on ep #8e: already in use Oct 5 13:51:47 KAMDesktop kernel: [ 910.617358] ALSA endpoint.c:434 Re-using EP 8e in iface 2,1 @ffff88041cb74028 Oct 5 13:51:47 KAMDesktop kernel: [ 910.617361] ALSA endpoint.c:786 Unable to change format on ep #8e: already in use Oct 5 13:51:47 KAMDesktop kernel: [ 910.617488] ALSA endpoint.c:434 Re-using EP 8e in iface 2,1 @ffff88041cb74028 Oct 5 13:51:47 KAMDesktop kernel: [ 910.617492] ALSA endpoint.c:786 Unable to change format on ep #8e: already in use Oct 5 13:51:47 KAMDesktop kernel: [ 910.617895] ALSA pcm.c:376 setting usb interface 2:1 Oct 5 13:51:47 KAMDesktop kernel: [ 910.617897] ALSA endpoint.c:434 Re-using EP 8e in iface 2,1 @ffff88041cb74028 Oct 5 13:51:47 KAMDesktop kernel: [ 910.617910] ALSA endpoint.c:786 Unable to change format on ep #8e: already in use Oct 5 13:51:47 KAMDesktop kernel: [ 910.617943] ALSA endpoint.c:434 Re-using EP 8e in iface 2,1 @ffff88041cb74028 Oct 5 13:51:47 KAMDesktop kernel: [ 910.617949] ALSA endpoint.c:786 Unable to change format on ep #8e: already in use Oct 5 13:51:47 KAMDesktop kernel: [ 910.618005] ALSA endpoint.c:434 Re-using EP 8e in iface 2,1 @ffff88041cb74028 Oct 5 13:51:47 KAMDesktop kernel: [ 910.618012] ALSA endpoint.c:786 Unable to change format on ep #8e: already in use Oct 5 13:51:47 KAMDesktop kernel: [ 910.618192] ALSA endpoint.c:434 Re-using EP 8e in iface 2,1 @ffff88041cb74028 Oct 5 13:51:47 KAMDesktop kernel: [ 910.618199] ALSA endpoint.c:786 Unable to change format on ep #8e: already in use Oct 5 13:51:47 KAMDesktop kernel: [ 910.618354] ALSA endpoint.c:434 Re-using EP 8e in iface 2,1 @ffff88041cb74028 Oct 5 13:51:47 KAMDesktop kernel: [ 910.618363] ALSA endpoint.c:786 Unable to change format on ep #8e: already in use Oct 5 13:51:47 KAMDesktop kernel: [ 910.623280] ALSA pcm.c:376 setting usb interface 1:1 Oct 5 13:51:47 KAMDesktop kernel: [ 910.623284] ALSA endpoint.c:434 Re-using EP d in iface 1,1 @ffff8803d6f54028 Oct 5 13:51:47 KAMDesktop kernel: [ 910.623285] ALSA endpoint.c:434 Re-using EP 8e in iface 2,1 @ffff88041cb74028 Oct 5 13:51:47 KAMDesktop kernel: [ 910.623308] ALSA endpoint.c:821 Setting params for ep #d (type 0, 8 urbs), ret=0 Oct 5 13:51:47 KAMDesktop kernel: [ 910.623310] ALSA pcm.c:541 match_endpoint_audioformats: (fmt @ffff8804a98e9ca8) score 2 Oct 5 13:51:47 KAMDesktop kernel: [ 910.623315] ALSA endpoint.c:821 Setting params for ep #8e (type 0, 8 urbs), ret=0 Oct 5 13:51:47 KAMDesktop kernel: [ 910.623316] ALSA pcm.c:229 Starting data EP @ffff8803d6f54028 Oct 5 13:51:47 KAMDesktop kernel: [ 910.623398] ALSA pcm.c:258 Starting sync EP @ffff88041cb74028