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linux/drivers/media/usb/em28xx/em28xx-v4l.h

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media: em28xx: Add SPDX license tags where needed Most of the files there are missing a SPDX license tag. Add. While here fix some DRIVER_LICENSE macro in order to reflect the source file license, as some of the headers are GPL v2 only. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-03 23:43:14 +08:00
/* SPDX-License-Identifier: GPL-2.0 */
[media] em28xx: make em28xx-video to be a separate module Now that all analog-specific code are at em28xx-video, convert it into an em28xx extension and load it as a separate module. Reviewed-by: Frank Schäfer <fschaefer.oss@googlemail.com> Tested-by: Frank Schäfer <fschaefer.oss@googlemail.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-23 00:27:02 +08:00
/*
media: em28xx: Add SPDX license tags where needed Most of the files there are missing a SPDX license tag. Add. While here fix some DRIVER_LICENSE macro in order to reflect the source file license, as some of the headers are GPL v2 only. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2018-03-03 23:43:14 +08:00
* em28xx-video.c - driver for Empia EM2800/EM2820/2840 USB
* video capture devices
*
* Copyright (C) 2013-2014 Mauro Carvalho Chehab <m.chehab@samsung.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
[media] em28xx: make em28xx-video to be a separate module Now that all analog-specific code are at em28xx-video, convert it into an em28xx extension and load it as a separate module. Reviewed-by: Frank Schäfer <fschaefer.oss@googlemail.com> Tested-by: Frank Schäfer <fschaefer.oss@googlemail.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-23 00:27:02 +08:00
*/
int em28xx_start_analog_streaming(struct vb2_queue *vq, unsigned int count);
[media] vb2: stop_streaming should return void The vb2 core ignores any return code from the stop_streaming op. And there really isn't anything it can do anyway in case of an error. So change the return type to void and update any drivers that implement it. The int return gave drivers the idea that this operation could actually fail, but that's really not the case. The pwc amd sdr-msi3101 drivers both had this construction: if (mutex_lock_interruptible(&s->v4l2_lock)) return -ERESTARTSYS; This has been updated to just call mutex_lock(). The stop_streaming op expects this to really stop streaming and I very much doubt this will work reliably if stop_streaming just returns without really stopping the DMA. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Pawel Osciak <pawel@osciak.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-04-17 13:47:21 +08:00
void em28xx_stop_vbi_streaming(struct vb2_queue *vq);
media: au0828/em28xx: make vb2_ops const Make vb2_ops const as they are only stored in the const field of a vb2_queue structure. Make the declarations const too. Done using Coccinelle. Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2017-09-28 01:08:19 +08:00
extern const struct vb2_ops em28xx_vbi_qops;
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