Hi Daniel,
On 19 October 2012 18:46, Daniel Mack zonque@gmail.com wrote:
On 19.10.2012 19:02, Pete Leigh wrote:
If it's any use regarding the urb 0 -ENOSPACE error I was having, I can try and track down the config item difference that makes it work,
If you would point me to any specific config option that reproducibly changes the behaviour, that would be of great help.
If I take the working config, and disable CONFIG_USB_EHCI_TT_NEWSCHED, recompile, make install, reboot, then I get the familiar "cannot submit urb 0, error -28: not enough bandwidth" error, and trying to record off the UA-25 in audacity freezes audacity. If I then re-enable it, recompile, make install, reboot, then I don't see the error, and recording off the UA-25 works normally in audacity.
This (as I guess you know) is the "Improved Transaction Translator scheduling" option under "Device Drivers" -> "USB Support" in menuconfig. The help text even mentions the -28 error, in fact, and suggests using this option in some circumstances.
Cheers,
- Pete