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Without a response, the host will assume there has been an error and
throw a bunch of errors. The noise of those errors makes it difficult
to see what's going on properly, so return a dummy response that
silences the errors until the functionality is properly implemented.
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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It's easier to see what's going on at a glance when the output is
human-readable, so replace the control codes with their names.
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The maxsize field of struct uvc_device is probably unecessary even if
it weren't currently fixed at 0. It's used to set dwMaxVideoFrameSize
in addition to the sizeimage member of a struct v4l2_pix_fmt (multiplied
in the latter instance by 1.5x). The documentary definitions for those
two values are such that they should be identical though, so simply
set dwMaxVideoFrameSize to width*height*2 (to maintain commonality
with other UVC Video devices) and use that to set the sizeimage.
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Previously, the interval rate that would be selected and replied to the
host in response to UVC_GET_MAX, UVC_GET_MIN, and UVC_GET_DEF were all
the same and were the first interval rate. Assuming the interval rates
are sorted in ascending order, this means that UVC_GET_MAX would always
yield the minimum interval rate.
Modify the call to uvc_fill_streaming_control such that UVC_GET_MAX will
yield the maximum interval rate.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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We would like to be able to set the frame rate of the video source of a
stream. This patch adds such a function to set the source's frame rate
from the stream. The frame rate is set right after the format is set.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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There is code that is meant to check for the error of an ioctl, but the
return variable that it checks isn't actually assigned from the ioctl.
Assign the return value before checking it.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
[Fixed error message]
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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To allow usage of the UVC gadget library in closed-source or otherwise
GPL-incompatible applications, relicense the library under the terms of
the LGPL v2.1 or later, as published by the Free Software Foundation.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Ideas on Board SPRL, the original copyright owner of the UVC gadget
application code, has been dissolved. All company copyrights have been
transferred to Laurent Pinchart. Update the copyright notices to
accordingly.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Replace the boilerplate copyright headers with an SPDX header to ease
license compliance. This doesn't change the license of any of the files.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Split the project into a UVC gadget library and a test application. To
avoid rolling out a custom build system, switch to CMake.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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