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| author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-03-18 12:00:52 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-03-18 12:00:52 -0300 |
| commit | 70bbc9f369222fa300c1fcb727eefd22da4db452 (patch) | |
| tree | 5ce7c5a87a1a88ac671c475fffa52d6cd2b4b4fe /linux/Documentation/video4linux | |
| parent | 72323c965e7e5472d7e8bc29775b1205cad63c78 (diff) | |
| parent | 2c783d535370caf906c325483998a842b5e0920a (diff) | |
| download | mediapointer-dvb-s2-70bbc9f369222fa300c1fcb727eefd22da4db452.tar.gz mediapointer-dvb-s2-70bbc9f369222fa300c1fcb727eefd22da4db452.tar.bz2 | |
merge: http://udev.netup.ru/hg/v4l-dvb-netup
From: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'linux/Documentation/video4linux')
| -rw-r--r-- | linux/Documentation/video4linux/bttv/README | 4 | ||||
| -rw-r--r-- | linux/Documentation/video4linux/v4l2-framework.txt | 11 |
2 files changed, 13 insertions, 2 deletions
diff --git a/linux/Documentation/video4linux/bttv/README b/linux/Documentation/video4linux/bttv/README index 7ca2154c2..3a367cdb6 100644 --- a/linux/Documentation/video4linux/bttv/README +++ b/linux/Documentation/video4linux/bttv/README @@ -63,8 +63,8 @@ If you have some knowledge and spare time, please try to fix this yourself (patches very welcome of course...) You know: The linux slogan is "Do it yourself". -There is a mailing list: video4linux-list@redhat.com. -https://listman.redhat.com/mailman/listinfo/video4linux-list +There is a mailing list: linux-media@vger.kernel.org +http://vger.kernel.org/vger-lists.html#linux-media If you have trouble with some specific TV card, try to ask there instead of mailing me directly. The chance that someone with the diff --git a/linux/Documentation/video4linux/v4l2-framework.txt b/linux/Documentation/video4linux/v4l2-framework.txt index 4207590b2..a31177390 100644 --- a/linux/Documentation/video4linux/v4l2-framework.txt +++ b/linux/Documentation/video4linux/v4l2-framework.txt @@ -105,6 +105,17 @@ You unregister with: Unregistering will also automatically unregister all subdevs from the device. +If you have a hotpluggable device (e.g. a USB device), then when a disconnect +happens the parent device becomes invalid. Since v4l2_device has a pointer to +that parent device it has to be cleared as well to mark that the parent is +gone. To do this call: + + v4l2_device_disconnect(struct v4l2_device *v4l2_dev); + +This does *not* unregister the subdevs, so you still need to call the +v4l2_device_unregister() function for that. If your driver is not hotpluggable, +then there is no need to call v4l2_device_disconnect(). + Sometimes you need to iterate over all devices registered by a specific driver. This is usually the case if multiple device drivers use the same hardware. E.g. the ivtvfb driver is a framebuffer driver that uses the ivtv |