[LAD] [Fwd: Re: USB device dmesg error]

---------------------------- Original Message ---------------------------- Subject: Re: [LAD] USB device dmesg error From: tom(a)trellis.ch Date: Fri, September 20, 2013 15:52 To: "Clemens Ladisch" <clemens(a)ladisch.de> -------------------------------------------------------------------------- Hei Clemens, thanks for your reply. the output i get is: --- Couldn't open device, some information will be missing Bus 001 Device 007: ID 0582:013e Roland Corp. Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 255 Vendor Specific Class bDeviceSubClass 0 bDeviceProtocol 255 bMaxPacketSize0 64 idVendor 0x0582 Roland Corp. idProduct 0x013e bcdDevice 0.00 iManufacturer 1 iProduct 2 iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 124 bNumInterfaces 3 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 500mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 255 Vendor Specific Subclass bInterfaceProtocol 0 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 2 bInterfaceProtocol 2 iInterface 0 ** UNRECOGNIZED: 06 24 f1 01 00 00 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 2 bInterfaceProtocol 2 iInterface 0 ** UNRECOGNIZED: 07 24 01 01 00 01 00 ** UNRECOGNIZED: 0b 24 02 01 02 04 18 01 44 ac 00 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x0d EP 13 OUT bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x0038 1x 56 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 2 bInterfaceProtocol 1 iInterface 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 1 bNumEndpoints 1 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 2 bInterfaceProtocol 1 iInterface 0 ** UNRECOGNIZED: 07 24 01 07 00 01 00 ** UNRECOGNIZED: 0b 24 02 01 02 04 18 01 44 ac 00 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x8e EP 14 IN bmAttributes 37 Transfer Type Isochronous Synch Type Asynchronous Usage Type Implicit feedback Data wMaxPacketSize 0x0038 1x 56 bytes bInterval 1 --- -> the "Couldn't open device" looks suspicious Huh? How could that work with JACK if it doesn't with ALSA? Btw, this is what i get when trying to start JACK with it: -- ub64@ub64:~/tmp$ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: R26AUDIO [R-26(AUDIO)], device 0: USB Audio [USB Audio] Subdevices: 1/1 Subdevice #0: subdevice #0 ub64@ub64:~/tmp$ lsof /dev/snd/* ub64@ub64:~/tmp$ ps aux | grep jack ub64 2340 0.0 0.0 10856 884 pts/1 S+ 15:50 0:00 grep --color=auto jack ub64@ub64:~/tmp$ jackd -d alsa -r 44100 -p 1024 -n 3 -d hw:0,0 jackdmp 1.9.8 Copyright 2001-2005 Paul Davis and others. Copyright 2004-2011 Grame. jackdmp comes with ABSOLUTELY NO WARRANTY This is free software, and you are welcome to redistribute it under certain conditions; see the file COPYING for details no message buffer overruns no message buffer overruns no message buffer overruns JACK server starting in realtime mode with priority 10 control device hw:0 control device hw:0 audio_reservation_init Acquire audio card Audio0 creating alsa driver ... hw:0,0|hw:0,0|1024|3|44100|0|0|nomon|swmeter|-|32bit control device hw:0 ATTENTION: The capture device "hw:0,0" is already in use. The following applications are using your soundcard(s) so you should check them and stop them as necessary before trying to start JACK again: jackd (process ID 2341) Cannot initialize driver JackServer::Open() failed with -1 Failed to open server -- Ciao, Thomas