Antti Palosaari <crope@xxxxxx> wrote: >On 08/06/2012 11:37 AM, Andy Walls wrote: >> James <bjlockie@xxxxxxxxx> wrote: >> >>> On 08/04/12 13:42, Andy Walls wrote: >>>> James <bjlockie@xxxxxxxxx> wrote: >>>> >>>>> There's a big pause before the 'unable' >>>>> >>>>> [ 2.243856] usb 4-1: Manufacturer: Logitech >>>>> [ 62.739097] cx25840 6-0044: unable to open firmware >>>>> v4l-cx23885-avcore-01.fw >>>>> >>>>> >>>>> I have a cx23885 >>>>> cx23885[0]: registered device video0 [v4l2] >>>>> >>>>> Is there any way to stop it from trying to load the firmware? >>>>> What is the firmware for, analog tv? Digital works fine and analog >>> is >>>>> useless to me. >>>>> I assume it is timing out there. >>>>> -- >>>>> 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 >>>> >>>> The firmware is for the analog broadcast audio standard (e.g. BTSC) >>> detection microcontroller. >>>> >>>> The A/V core of the CX23885/7/8 chips is for analog vidoe and audio >>> processing (broadcast, CVBS, SVideo, audio L/R in). >>>> >>>> The A/V core of the CX23885 provides the IR unit and the Video PLL >>> provides the timing for the IR unit. >>>> >>>> The A/V core of the CX23888 provides the Video PLL which is the >>> timing for the IR unit in the CX23888. >>>> >>>> Just grab the firmware and be done with it. Don't waste time with >>> trying to make the cx23885 working properly but halfway. >>>> >>>> Regards, >>>> Andy >>> >>> I already have the firmware. >>> # ls -l /lib/firmware/v4l-cx23885-avcore-01.fw >>> -rw-r--r-- 1 root root 16382 Oct 15 2011 >>> /lib/firmware/v4l-cx23885-avcore-01.fw >>> >>> >>> -- >>> 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 >> >> >> Hmm. The firmware file size and location look right. >> >> The 60 second delay is the default kernel delay waiting for the >userspace firmware loader to fetch th file amd provide it to the kernel >via sysfs. >> >> That doesn't appear to be happening. I know udev runs some script to >accomplish that. I'm away from my development system, so I can't >investigate further. >> >> Regards, >> Andy > >I suspect it could be the firmware download issue with udev. Recent >udev >versions doesn't allow firmware download during module init path as >module init should not be blocked such long period. > >I did quite much work for resolving that issue for the dvb usb by >deferring device init in probe using work-queue. It is not good looking > >solution and Mauro is still trying to found out more general solution. > >regards >Antti > >-- >http://palosaari.fi/ So the cx25840 module scheduling the firmware load to be done by a worker thread is not enough to satisfy the new udev rule? http://git.linuxtv.org/media_tree.git/blob/staging/for_v3.7:/drivers/media/video/cx25840/cx25840-core.c#l628 Regards, Andy -- 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
