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V4L: Int if: Set slave's master before attach, remove master argument
The master also now gets its own pointer from slave's structure.
Signed-off-by: Sakari Ailus <sakari.ailus@nokia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Remove support for g_ext_clk and s_ext_clk. The same functionality is
now handled by g_ifparm.
Signed-off-by: Sakari Ailus <sakari.ailus@nokia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
vidioc_int_g_ifparm can be used to obtain hardware-specific information
about the interface used by the slave.
Rearrange v4l2-int-device.h as well.
Also remove useless & characters.
Signed-off-by: Sakari Ailus <sakari.ailus@nokia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Fix a compile warning on non-32-bit machines in v4l2-int-device.h.
Add internal ioctl interface fallback function for ioctls with one
argument.
Signed-off-by: Sakari Ailus <sakari.ailus@nokia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This patch adds an internal ioctl-like interface which can be used in
situations where a single Video4Linux device is implemented by multiple
device drivers. One master device controls one or more slave devices.
The slaves provide Video4Linux ioctl-like interface for the use of the
master.
Only a handful of ioctls are implemented at the moment. More can (and
should) be added as more functionality is required.
Signed-off-by: Sakari Ailus <sakari.ailus@nokia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
