On Wed, 2012-09-12 at 08:32 +0200, Marx wrote: > Hello > I'm trying to use dual DVB-T tuner based on ITE9135 tuner. I use Debian > kernel 3.5-trunk-686-pae. My motherboard is AsRock E350M1 (no USB3 ports). > Tuner is detected ok, see log at the end of post. > > When I try to scan channels, bug happens: > Sep 11 17:16:31 wuwek kernel: [ 209.291329] ehci_hcd 0000:00:13.2: > force halt; handshake f821a024 00004000 00000000 -> -110 > Sep 11 17:16:31 wuwek kernel: [ 209.291401] ehci_hcd 0000:00:13.2: HC > died; cleaning up > Sep 11 17:16:31 wuwek kernel: [ 209.291606] usb 2-3: USB disconnect, > device number 2 > Sep 11 17:16:41 wuwek kernel: [ 219.312848] dvb-usb: error while > stopping stream. > Sep 11 17:16:41 wuwek kernel: [ 219.320585] dvb-usb: ITE 9135(9006) > Generic successfully deinitialized and disconnected. > > After trying many ways I've read about problems with ehci on SB700 based > boards and switched off ehci via command > sh -c 'echo -n "0000:00:13.2" > unbind' > and now ehci bug doesn't happen. Of course I can see only one tuner and > in slower USB mode (see log at the end). But now I can scan succesfully > without any errors. > > Of course it isn't acceptable fix for my problem. Drivers for ITE9135 > seems ok, but there is a problem with ehci_hcd on my motherboard. > I would like to know what can I do to fix my problem. > Hi Marx The only thing I can think of is the firmware for dual ite 9135(9006) chip version 1 may be different. Make sure you only scan on adapter 0 on ehci. If you want to send me privately a copy of the IT9135BDA.sys file from /WINDOWS/system32/drivers directory. I can extract and test that firmware against the devices I have and eliminate the Linux driver. Regards Malcolm -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
