Em Sun, 22 Dec 2013 13:06:00 -0200 Mauro Carvalho Chehab <m.chehab@xxxxxxxxxxx> escreveu: > Em Sun, 22 Dec 2013 00:27:21 +0200 > Antti Palosaari <crope@xxxxxx> escreveu: > > > I ran also this kind of bug. Device was PCTV 290e, which has that video > > unused. I have no any analog em28xx webcam to test if that happens here too. > > > > Fortunately I found one video device which does not crash nor dump debug > > bug warnings. It is some old gspca webcam. Have to look example how > > those videobuf callbacks are implemented there.. > > > > regards > > Antti > > > > > > [crope@localhost linux]$ cat /dev/video0 > > cat: /dev/video0: Invalid argument > > [crope@localhost linux]$ cat /dev/video0 > > cat: /dev/video0: Device or resource busy > > [crope@localhost linux]$ > > > > > > joulu 22 00:08:24 localhost.localdomain kernel: em28174 #0: no endpoint > > for analog mode and transfer type 0 > > It seems that there's something bad on em28174 registration: it should not > be creating a v4l2 device, if the device is DVB only. > > The thing is that, when this driver was created, all devices were either > analog only or hybrid. Only very recently, pure DVB devices got added. > > It shouldn't be that hard to split em28xx_init_dev() into a few routines > that would only register v4l2 if the device has analog support. > > Again, this changeset: > https://patchwork.linuxtv.org/patch/17967/ > > Seems to be part of such solution, as it already splits the v4l2 > register logic into a separate function. Ok, if I didn't make any mistake, this changeset should do the trick: https://patchwork.linuxtv.org/patch/21282/ Please notice that this is compile-tested only. Regards, Mauro -- Cheers, Mauro -- 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
