| 1966bc2a48f12d5d11c4fbe0880955cc4bfda0f9 |
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30-Aug-2013 |
Ondrej Zary <linux@rainbow-software.org> |
[media] gspca: store current mode instead of individual parameters
Store complete current mode (struct v4l2_pix_format) in struct gspca_dev
instead of separate pixfmt, width and height parameters.
This is a preparation for variable resolution support.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
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| e52ec68015b81ccd5f0950d56328b78f43ae2985 |
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12-Dec-2012 |
Sachin Kamat <sachin.kamat@linaro.org> |
[media] gspca: Use module_usb_driver macro
module_usb_driver eliminates a lot of boilerplate by replacing
module_init() and module_exit() calls.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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| 844db450e6e2cf710752af1a019a877af390b541 |
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09-Sep-2012 |
Hans de Goede <hdegoede@redhat.com> |
[media] gspca: Update / fix various comments wrt workqueue usb_lock usage
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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| 345321dc9c52b774f42c934339f9b3e2f0a39395 |
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09-Sep-2012 |
Hans de Goede <hdegoede@redhat.com> |
[media] gspca: Don't set gspca_dev->dev to NULL before stop0
In commit a3d6e8cc0e6ddc8b3cfdeb3c979f07ed1aa528b3 gspca_dev->dev is set
to NULL on disconnect, before calling stop0. The plan was to get rid of
gspca_dev->present and instead simply check for gspca_dev->dev everywhere
where we were checking for present. This should be race free since all users
of gspca_dev->dev hold the usb_lock, or so I thought.
But I was wrong, drivers which use a work-queue + synchronous bulk transfers
to get the video data don't hold the usb_lock while doing so, their stop0
callbacks stop the workqueue, so they won't be using gspca_dev->dev anymore
after the stop0 call, but they might be dereferincing it before, so we should
not set gspca_dev->dev to NULL on disconnect before calling stop0.
This also means that the workqueue functions in these drivers cannot
use gspca_dev->dev to check if they need to stop because of disconnection,
so we will need to keep gspca_dev->present around, and set that to 0 on
disconnect, before calling stop0. Unfortunately as part of the plan to remove
gspca_dev->present, these workqueues where already moved over to checking
for gspca_dev->dev instead of gspca_dev->present as part of commit
254902b01d2acc6aced99ec17caa4c6cd890cdea, so this patch also reverts those
parts of that commit.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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| 0c0d06cac63ee327ceaab4b5ffe2206574ab86bd |
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14-Aug-2012 |
Mauro Carvalho Chehab <mchehab@redhat.com> |
[media] rename most media/video usb drivers to media/usb
Rename all USB drivers with their own directory under
drivers/media/video into drivers/media/usb and update the
building system.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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