- 30 Jul, 2012 40 commits
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Hans Verkuil authored
Commit efbceecd, adds a number of helper functions for ctrl related ioctls to v4l2-ioctl.c, these helpers assume that if file->private_data != NULL, it points to a v4l2_fh, which is only the case for drivers which actually use v4l2_fh. This breaks for example bttv which use the "filedata" pointer for its own uses, and now all the ctrl ioctls try to use whatever its filedata points to as v4l2_fh and think it has a ctrl_handler, leading to: [ 142.499214] BUG: unable to handle kernel NULL pointer dereference at 0000000000000021 [ 142.499270] IP: [<ffffffffa01cb959>] v4l2_queryctrl+0x29/0x230 [videodev] [ 142.514649] [<ffffffffa01c7a77>] v4l_queryctrl+0x47/0x90 [videodev] [ 142.517417] [<ffffffffa01c58b1>] __video_do_ioctl+0x2c1/0x420 [videodev] [ 142.520116] [<ffffffffa01c7ee6>] video_usercopy+0x1a6/0x470 [videodev] ... This patch adds the missing test_bit(V4L2_FL_USES_V4L2_FH, &vfd->flags) tests to the ctrl ioctl helpers v4l2_fh paths, fixing the issues with for example the bttv driver. Signed-off-by:
Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
Mauro Carvalho Chehab <mchehab@redhat.com>
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Hans de Goede authored
And document V4L2_CID_AUTOBRIGHTNESS. Signed-off-by:
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Hans de Goede authored
When the v4l2_device release handler gets called the kobject under vdev->dev has already been released, so we cannot use kobject_name on it (which video_device_node_name does). Signed-off-by:
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Hans de Goede authored
As it cannot be changed while streaming. Signed-off-by:
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Hans de Goede authored
These are broken with my test cam and I've been unable to fix them. Signed-off-by:
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Hans de Goede authored
The konica needs a freaking large time (circa 6.5 seconds) to "boot", and does not want to be bothered while doing so, so sleep for 6 seconds, and then query its status register at 100ms intervals until it becomes ready. This removes the "reg_w err: -32" messages shown in dmesg whenever a konica cam gets initialized, and also fixes the camera not working when an app tries to use it directly after it has been plugged in and after a suspend/resume cycle. Signed-off-by:
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Hans de Goede authored
1) The gspca-core's suspend/resume code is such that resume being called after a reset is safe / ok. 2) All devices tested sofar seem to need the reset_resume callback to work properly over a suspend 3) The USB-core won't call the reset_resume callback for devices which don't need it Thus it seems the simplest and the best to just add the callback to all sub-drivers, rather then adding the callbacks one-by-one as each driver gets tested with suspend/resume. Signed-off-by:
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Hans de Goede authored
Various gspca-subdrivers have a JPEG quality control which only changes the quantization tables in the JPEG headers send to user-space without making any changes to the settings of the bridge. Remove these bogus / wrong controls. Signed-off-by:
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Hans Verkuil authored
This ensures the controls are setup correctly. Signed-off-by:
Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by:
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Hans Verkuil authored
The v4l2_pix_format priv field must be 0, so zero it. Also disable ioctls that are not implemented by a subdriver. Signed-off-by:
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Changes by Hans de Goede: -rework how gain controls work to better match control framework -make awb + gain + red/blue-balance a single auto-cluster -only add the HFLIP control for TAS5130a sensor cams, as it breaks the video on other cams Signed-off-by:
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Hans Verkuil authored
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