Hi Sergei, On Wed, Jul 17, 2013 at 12:04:18AM +0200, Sergey 'Jin' Bostandzhyan wrote: > > I am not quite sure if the problem is in the driver or if the user space > applications are doing something in a weird or wrong way, I hope you can > help me. > > I have one of those easycap 4x-input devices with a Syntek chip: > Bus 001 Device 002: ID 05e1:0408 Syntek Semiconductor Co., Ltd STK1160 Video Capture Device > > I'm on 3.9.9-201.fc18.i686.PAE kernel, using the stk1160 driver. > > It generally works fine, I can, for example, open the video device using VLC, > select one of the inputs and get the picture. > > However, programs like motion or zoneminder fail, I am not quite sure if it > is something that they might be doing or if it is a problem in the driver. > > Basically, for both of the above, the problem is that VIDIOC_S_INPUT fails > with EBUSY. > > I do not see any errors in the message log, only: > Jul 16 21:27:24 localhost kernel: [ 9477.574448] stk1160: queue_setup: buffer > +count 8, each 829440 bytes > Jul 16 21:27:24 localhost kernel: [ 9477.595667] stk1160: setting alternate 5 > > I somewhat assume that it works with VLC because when switching the input you > more or less "open a new device", while zoneminder/motion might try to > change the input while actually streaming. > > I'd appreciate any help or hint, also in case if you think that it's not the > driver issue, maybe you have an idea what I should be looking for (i.e. > what other operations might cause the VIDIOC_S_INPUT ioctl to fail?). > Let me try those applications and see what I find. From what you describe I believe your suspicious might be accurate, but let me check first. Thanks, -- Ezequiel García, Free Electrons Embedded Linux, Kernel and Android Engineering http://free-electrons.com -- 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
