forked from luck/tmp_suning_uos_patched
163fe744c3
Fix a regression caused by changeset 9133:64aed7485a43 - v4l: disconnect kernel number from minor Before the above changeset, ov511_probe used to allow forcing to use a certain specific set of video devices, like: modprobe ov511 unit_video=4,1,3 num_uv=3 So, assuming that you have 5 ov511 devices, and connect they one by one, they'll gain the following device numbers (at the connection order): /dev/video4 /dev/video1 /dev/video3 /dev/video0 /dev/video2 However, this was changed due to this change at video_register_device(): + nr = find_next_zero_bit(video_nums[type], minor_cnt, nr == -1 ? 0 : nr); With the previous behavior, a trial to register on an already allocated mirror would fail, and a loop would get the next requested minor. However, the current behavior is to get the next available minor instead of failing. Due to that, this means that the above modprobe parameter will give, instead: /dev/video5 /dev/video6 /dev/video7 /dev/video8 /dev/video9 In order to restore the original behavior, a static var were added, storing the amount of already registered devices. While there, it also fixes the locking of the probe/disconnect functions. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> |
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| .. | ||
| common | ||
| dvb | ||
| radio | ||
| video | ||
| Kconfig | ||
| Makefile | ||