Re: em28xx : can work on ARM beagleboard ?
Devin Heitmueller dheitmueller at kernellabs.com writes: On Tue, May 8, 2012 at 2:24 PM, Antti Palosaari crope at iki.fi wrote: It should work as I know one person ran PCTV NanoStick T2 290e using Pandaboard which is rather similar ARM hw. http://www.youtube.com/watch?v=Wuwyuw0y1Fo I ran into a couple of issues related to em28xx analog on ARM. Haven't had a chance to submit patches yet. To answer the question though: yes, analog support for the em28xx is known to be broken on ARM right now. Devin hi Devin, i don't understand what you mean when you say analog support for the em28xx is known to be broken on ARM right now'', I hope you can give me some advice. I use Pinnacle DVC100 capture card on cm-t3530 card to capture analog images. cm-t3530 uses linux 2.6.32 kernel. at first the card can be correctly detected and by the cm-t3530 and generated as the device file /dev/video1. but when I use some application to capture the images by use of v4l2,there is something wrong and the strace of the application shows the error message is ioctl(3, VIDIOC_DQBUF, 0xbeeb4a00) = ? ERESTARTSYS (To be restarted). The same application can correctly capture my usb-camera images. does the problem can be solved? I am yearning for your advice. Best regards Julia -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: em28xx : can work on ARM beagleboard ?
On Wed, Jun 20, 2012 at 10:12 PM, Julia julia.cheung...@gmail.com wrote: hi Devin, i don't understand what you mean when you say analog support for the em28xx is known to be broken on ARM right now'', I hope you can give me some advice. I use Pinnacle DVC100 capture card on cm-t3530 card to capture analog images. cm-t3530 uses linux 2.6.32 kernel. at first the card can be correctly detected and by the cm-t3530 and generated as the device file /dev/video1. but when I use some application to capture the images by use of v4l2,there is something wrong and the strace of the application shows the error message is ioctl(3, VIDIOC_DQBUF, 0xbeeb4a00) = ? ERESTARTSYS (To be restarted). The same application can correctly capture my usb-camera images. does the problem can be solved? I am yearning for your advice. Hello Julia, Yeah, the driver is broken with analog on ARM. I did some work for a commercial customer (in fact, also on a Compulab board), but haven't had a chance to clean up any of the patches and get them upstream. It's likely the problem you are hitting can be fixed by the patch described here: http://www.mail-archive.com/linux-media@vger.kernel.org/msg28194.html Devin -- Devin J. Heitmueller - Kernel Labs http://www.kernellabs.com -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: em28xx : can work on ARM beagleboard ?
Em 08-05-2012 15:18, CB escreveu: Hello, I would like to know if someone has already used the em28xx driver on a beagleboard xM (the connected device is a Dazzle DVC 100) I have tried with an Angstrom Narcissus image and a Debian but I still get select timeouts and skipped frames with mencoded or the capture.c sample Not sure if something changed, but on previous tests I did with USB 2.0 isoc and Beagleboard, it seems that it has something broken at its USB driver: after some time, it stops working when submitted to a high traffic. I noticed this behavior not only with USB capture cards, but also when using it to sniff traffic, using Google's GoC sniffer[1]. [1] http://beagleboard.org/project/usbsniffer/ Thanks in advance, Regards, Chris -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: em28xx : can work on ARM beagleboard ?
Hi, I'm not sure about the fix (it could break the driver for other em28xx cards) but I will try to post a patch for the em28xx problem on ARM Next, I have encountered the same USB problem you described : USB stopping after a long capture (and ethernet stops too) For this problem, I think a patch is available about the PHY update frequency Have a look to : http://rcn-ee.homeip.net:81/testing/beagleboard/sprz319-erratum-2.1/ I found it in a thread on the google beagleboard list) I will try and post the results here Regards, Chris Le 10/05/2012 15:39, Mauro Carvalho Chehab a écrit : Em 08-05-2012 15:18, CB escreveu: Hello, I would like to know if someone has already used the em28xx driver on a beagleboard xM (the connected device is a Dazzle DVC 100) I have tried with an Angstrom Narcissus image and a Debian but I still get select timeouts and skipped frames with mencoded or the capture.c sample Not sure if something changed, but on previous tests I did with USB 2.0 isoc and Beagleboard, it seems that it has something broken at its USB driver: after some time, it stops working when submitted to a high traffic. I noticed this behavior not only with USB capture cards, but also when using it to sniff traffic, using Google's GoC sniffer[1]. [1] http://beagleboard.org/project/usbsniffer/ Thanks in advance, Regards, Chris -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: em28xx : can work on ARM beagleboard ?
Sorry, the link is broken, see http://www.spinics.net/lists/linux-omap/msg64931.html Regards, Christian Le 10/05/2012 18:43, chrbruno a écrit : Hi, I'm not sure about the fix (it could break the driver for other em28xx cards) but I will try to post a patch for the em28xx problem on ARM Next, I have encountered the same USB problem you described : USB stopping after a long capture (and ethernet stops too) For this problem, I think a patch is available about the PHY update frequency Have a look to : http://rcn-ee.homeip.net:81/testing/beagleboard/sprz319-erratum-2.1/ I found it in a thread on the google beagleboard list) I will try and post the results here Regards, Chris Le 10/05/2012 15:39, Mauro Carvalho Chehab a écrit : Em 08-05-2012 15:18, CB escreveu: Hello, I would like to know if someone has already used the em28xx driver on a beagleboard xM (the connected device is a Dazzle DVC 100) I have tried with an Angstrom Narcissus image and a Debian but I still get select timeouts and skipped frames with mencoded or the capture.c sample Not sure if something changed, but on previous tests I did with USB 2.0 isoc and Beagleboard, it seems that it has something broken at its USB driver: after some time, it stops working when submitted to a high traffic. I noticed this behavior not only with USB capture cards, but also when using it to sniff traffic, using Google's GoC sniffer[1]. [1] http://beagleboard.org/project/usbsniffer/ Thanks in advance, Regards, Chris -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: em28xx : can work on ARM beagleboard ?
I confirm it works fine on an x86 arch i will have a look to the HCL to find a compatible usb video capture stick ! Thanks for your answers Chris Le 08/05/2012 20:53, Antti Palosaari a écrit : On 08.05.2012 21:47, Devin Heitmueller wrote: On Tue, May 8, 2012 at 2:24 PM, Antti Palosaaricr...@iki.fi wrote: It should work as I know one person ran PCTV NanoStick T2 290e using Pandaboard which is rather similar ARM hw. http://www.youtube.com/watch?v=Wuwyuw0y1Fo I ran into a couple of issues related to em28xx analog on ARM. Haven't had a chance to submit patches yet. To answer the question though: yes, analog support for the em28xx is known to be broken on ARM right now. Aah, OK. I missed that was analog capture device. Devin surely knows what he speaks. regards Antti -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: em28xx : can work on ARM beagleboard ?
On 08.05.2012 21:18, CB wrote: I would like to know if someone has already used the em28xx driver on a beagleboard xM (the connected device is a Dazzle DVC 100) I have tried with an Angstrom Narcissus image and a Debian but I still get select timeouts and skipped frames with mencoded or the capture.c sample It should work as I know one person ran PCTV NanoStick T2 290e using Pandaboard which is rather similar ARM hw. http://www.youtube.com/watch?v=Wuwyuw0y1Fo Did you tried it on x86 hardware? regards Antti -- http://palosaari.fi/ -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: em28xx : can work on ARM beagleboard ?
On Tue, May 8, 2012 at 2:24 PM, Antti Palosaari cr...@iki.fi wrote: It should work as I know one person ran PCTV NanoStick T2 290e using Pandaboard which is rather similar ARM hw. http://www.youtube.com/watch?v=Wuwyuw0y1Fo I ran into a couple of issues related to em28xx analog on ARM. Haven't had a chance to submit patches yet. To answer the question though: yes, analog support for the em28xx is known to be broken on ARM right now. Devin -- Devin J. Heitmueller - Kernel Labs http://www.kernellabs.com -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: em28xx : can work on ARM beagleboard ?
On 08.05.2012 21:47, Devin Heitmueller wrote: On Tue, May 8, 2012 at 2:24 PM, Antti Palosaaricr...@iki.fi wrote: It should work as I know one person ran PCTV NanoStick T2 290e using Pandaboard which is rather similar ARM hw. http://www.youtube.com/watch?v=Wuwyuw0y1Fo I ran into a couple of issues related to em28xx analog on ARM. Haven't had a chance to submit patches yet. To answer the question though: yes, analog support for the em28xx is known to be broken on ARM right now. Aah, OK. I missed that was analog capture device. Devin surely knows what he speaks. regards Antti -- http://palosaari.fi/ -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
