Hi, As far as I remember, TVP7002 does not support any other controls, so driver returns error for contrast/saturation.
Thx, Brijesh ________________________________ From: davinci-linux-open-source-boun...@linux.davincidsp.com [mailto:davinci-linux-open-source-boun...@linux.davincidsp.com] On Behalf Of armstrong james Sent: Wednesday, June 02, 2010 7:47 AM To: davinci-linux-open-source@linux.davincidsp.com Subject: How to control the contrast saturation of tvp7002 Hello all, I'm using dm6467 and lsp1.3 . In tvp7002.c, I only found the relation code that was used to initialize the brightness of tvp7002. In the encode application, I added some ioctl code and wanted to control the contrast brightness saturation of tvp7002. The code is as below: struct v4l2_control ctrl; if(type == 1) ctrl.id<http://ctrl.id> = V4L2_CID_CONTRAST; else if(type == 2) ctrl.id<http://ctrl.id> = V4L2_CID_SATURATION; ctrl.value = value; ioctl(hCapture->fd, VIDIOC_S_CTRL, &ctrl); but the return value of ioctl was -1,so the handling was fail. Could you tell me how to control the contrast brightness saturation of tvp7002? thank you. best regards.
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