---------- Forwarded message ---------- From: Felix Sulima <fsul...@gmail.com> Date: 2009/7/13 Subject: Re: [Linux-uvc-devel] MediaTek MT6227 on Philips 9...@9u is now working with uvc To: Laurent Pinchart <laurent.pinch...@skynet.be>
Hi, Laurent. This is to inform you that your patch is working. Thank you very much! Some more details just in case they may be important. I'm using Jaunty with ppa kernel built on 10-Jun-2009: http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.30/<http://kernel.ubuntu.com/%7Ekernel-ppa/mainline/v2.6.30/> $ uname -a Linux eel 2.6.30-020630-generic #020630 SMP Wed Jun 10 09:04:38 UTC 2009 x86_64 GNU/Linux Here is the id of sources I used: http://linuxtv.org/hg/~pinchartl/uvcvideo/<http://linuxtv.org/hg/%7Epinchartl/uvcvideo/> $ hg identify 1af5233017e6 tip dmesg shows on unpatched build: [19849.225014] usb 7-2: new full speed USB device using uhci_hcd and address 4 [19849.688583] usb 7-2: configuration #1 chosen from 7 choices [19849.701499] uvcvideo: Found UVC 1.00 device 9...@9u (0e8d:0004) [19850.702430] uvcvideo: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround. [19850.704435] uvcvideo: Failed to query (129) UVC probe control : -71 (exp. 26). [19850.704440] uvcvideo: Failed to initialize the device (-5). and here is dmesg output on patched build: [20621.336014] usb 7-2: new full speed USB device using uhci_hcd and address 5 [20621.802072] usb 7-2: configuration #1 chosen from 7 choices [20621.813997] uvcvideo: Found UVC 1.00 device 9...@9u (0e8d:0004) [20621.816089] input: 9...@9u as /devices/pci0000:00/0000:00:1d.1/usb7/7-2/7-2:1.0/input/input7 Please let me know if there is anything I can help with. Best regards, Felix. 2009/7/11 Laurent Pinchart <laurent.pinch...@skynet.be> Hi, > > On Tuesday 07 July 2009 15:24:19 fsulima wrote: > > Hi all. > > > > MediaTek MT6227 on Philips 9...@9u do not work. It looks like this: > > > > $ dmesg | tail > > [94425.741948] uvcvideo: Failed to query (135) UVC control 1 (unit 0) : > > -110 (exp. 26). > > [94425.743941] uvcvideo: Failed to query (129) UVC control 1 (unit 0) : > > -71 (exp. 26). > > [94425.743946] uvcvideo: Failed to initialize the device (-5). > > [94429.128037] usb 7-2: USB disconnect, address 8 > > [94436.384010] usb 7-2: new full speed USB device using uhci_hcd and > > address 9 > > [94436.849070] usb 7-2: configuration #1 chosen from 7 choices > > [94436.859998] uvcvideo: Found UVC 1.00 device 9...@9u (0e8d:0004) > > [94437.861939] uvcvideo: Failed to query (135) UVC control 1 (unit 0) : > > -110 (exp. 26). > > [94437.863947] uvcvideo: Failed to query (129) UVC control 1 (unit 0) : > > -71 (exp. 26). > > [94437.863952] uvcvideo: Failed to initialize the device (-5). > > That's weird. The camera seem to crash when queried with GET_DEF. Could you > please try the attached patch ? It might require some tweaking if you don't > apply it on top of the latest driver version. > > > $ lsusb -d 0e8d:0004 -v > > [snip] > > The device descriptors look *really* weird. The device exposes 7 > configurations, and the only difference between them is the power > consumption. > Are you sure you haven't received a development prototype ? :-) > > > It looks I'm not the only one having this problem: > > http://ubuntuforums.org/showthread.php?t=1164520 > > > > Is there any remedy for this? > > Try the attached patch and let me know if it helps. > > Best regards, > > Laurent Pinchart > > >
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