Autor Thema: Problems with isochronous transfer mode  (Gelesen 4174 mal)

gergomez

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Problems with isochronous transfer mode
« am: Mai 10, 2010, 02:40:41 Vormittag »
Hello, I'm running kernel 2.6.32.10, and would like to keep running 2.6.32.x series, has the isochronous bug being solved in 32.11 or 32.12?? If not, do you have a patch against 2.6.32.x series that fixes this?

If running in iso mode DVBT does not work, can tune with tzap but mplayer and xine fails when playing. It get fixed if I switch to bulk mode, but it gives worse quality, the image just stall for half a second every three or four seconds.

Best regards,

Sundtek

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Re:Problems with isochronous transfer mode
« Antwort #1 am: Mai 10, 2010, 09:43:26 Vormittag »
Linux 2.6.32.9 - 2.6.33.1 are broken with isochronous transfer. We notified the kernel developers a few days after SUSE broke the USB interface, but it took some time to bailout the issue in the mainstream kernels.

This also affects scanners, some printer, VMWare, Qemu, Virtualbox, some webcam drivers from other companies, etc.

A patch for this issue:
http://lkml.org/lkml/2010/2/27/226

So far we took care that Ubuntu (Ubuntu 10.04 is not affected with 2.6.32.x) and Fedora have fixed those issues, Debian developers got notified about it as well.
« Letzte Änderung: Mai 10, 2010, 11:03:11 Vormittag von Sundtek »
Failure is a good thing! I'll fix it