On 08.01.2012 16:07, alexander wrote: > So again, exactly what is the state of usb2 audio class compliance? I've > asked around in many places now and noone seems to know. I read > somewhere that it's spotty at best and other places that it has just > been implemented, seems like noone knows for sure.. So another question > arises, is it a hard thing to do? Sorry for the late response. Support for v2 is fairly complete, with the exception of some clocking features that have not been observed "in the wild". Is you issue already solved? If not, can I ask you to build a 3.4.0 kernel and apply this patch on top? I just submitted a new version of a rework patch that changes a lot things around USB packet handling in the snd-usb driver. https://gist.github.com/1168715 I would be interested wether this changes anything for your card. Daniel > > It seems to be properly detected, but I get an error when trying to use it. > > |[ 2384.749399] usb 1-2: USB disconnect, device number 2 > [ 2390.729825] usb 1-2: new high speed USB device number 3 using ehci_hcd > [ 2390.863654] generic-usb 0003:0926:0202.0003: hiddev0,hidraw0: USB HID v1.01 Device [Sound Devices USBPre2] on usb-0000:00:02.1-2/input3 > [ 2418.388135] cannot submit syncpipe for urb 0, error -90: internal error > > Here are the lsusb -v again, both with the device connected as 1.1 and 2.0. As usb1.1 http://pastebin.com/Jj6mXHxJ and here as usb2 http://pastebin.com/8uCBAkNb > > I've looked at them and the only thing that differs is the |bInterval, wich is 1 in usb1.1 and 4 in usb2. Wich I've understood has something to do with how often the device is called or something.. > > > > > ------------------------------------------------------------------------------ > Ridiculously easy VDI. With Citrix VDI-in-a-Box, you don't need a complex > infrastructure or vast IT resources to deliver seamless, secure access to > virtual desktops. With this all-in-one solution, easily deploy virtual > desktops for less than the cost of PCs and save 60% on VDI infrastructure > costs. Try it free! http://p.sf.net/sfu/Citrix-VDIinabox > > > > _______________________________________________ > Alsa-user mailing list > Alsa-user@xxxxxxxxxxxxxxxxxxxxx > https://lists.sourceforge.net/lists/listinfo/alsa-user ------------------------------------------------------------------------------ For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
