A tutorial for V4L drivers

2013-12-29 Thread Jahn
Is there any tutorial/example how to develop a driver for V4L tuner? Thanks -- 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

cron job: media_tree daily build: ERRORS

2013-12-29 Thread Hans Verkuil
This message is generated daily by a cron job that builds media_tree for the kernels and architectures in the list below. Results of the daily build of media_tree: date: Mon Dec 30 04:00:28 CET 2013 git branch: test git hash: 7d459937dc09bb8e448d9985ec4623779427d8a5 gcc versio

[PATCH 0/25] fix error return code

2013-12-29 Thread Julia Lawall
These patches fix cases where the return variable is not set to an error code in an error case. -- 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

[PATCH 3/25] fix error return code

2013-12-29 Thread Julia Lawall
From: Julia Lawall The rest of the function uses ret to store the return value, even setting ret to i a few lines before this, so return ret instead of i. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // ( if@p1 (\(ret < 0\|ret !

[PATCH 20/25] fix error return code

2013-12-29 Thread Julia Lawall
From: Julia Lawall Set the return variable to an error code as done elsewhere in the function. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // ( if@p1 (\(ret < 0\|ret != 0\)) { ... return ret; } | ret@p1 = 0 ) ... when != ret =

Re: Fwd: v4l2: The device does not support the streaming I/O method.

2013-12-29 Thread Andy
Are there any other viable options to stream /dev/video0 then? On Sat, Dec 28, 2013 at 1:15 PM, Andy Walls wrote: > On Fri, 2013-12-27 at 00:37 -0500, Andy wrote: >> I am trying to capture input from /dev/video0 which is Hauppauge Win >> 150 MCE PCI card but I get the following error which has no

Re: DMABUF doesn't work when frame size not equal to the size of GPU bo

2013-12-29 Thread Laurent Pinchart
Hi Chuanbo, On Friday 27 December 2013 09:55:40 Chuanbo Weng wrote: > > Hi all, > > > > (My environment is intel platform, HD4000 GPU, kernel 3.10.19, logitech > > 270 webcam) > > > > As title said, I discover this issue when I run the program shown by > > Laurent Pinchart: > > http://www.mail-a