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| author | Bhupesh Sharma <bhupesh.sharma@st.com> | 2013-03-28 10:41:53 +0100 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2013-04-02 10:42:49 +0200 |
| commit | 2f1d57069338b14fcf4765ae2c25fc377da45b1f (patch) | |
| tree | 3b2cbfd148a6d5766ebd3b2b0decd6346b94e929 /drivers/usb/gadget/uvc_v4l2.c | |
| parent | usb: gadget/uvc: Port UVC webcam gadget to use videobuf2 framework (diff) | |
| download | linux-2f1d57069338b14fcf4765ae2c25fc377da45b1f.tar.xz linux-2f1d57069338b14fcf4765ae2c25fc377da45b1f.zip | |
usb: gadget/uvc: Add support for 'get_unmapped_area' for MMUless architectures
This patch adds the support for 'get_unmapped_area' in UVC gadget
which is called when the 'mmap' system call is executed on MMUless
architectures.
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@st.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Diffstat (limited to 'drivers/usb/gadget/uvc_v4l2.c')
| -rw-r--r-- | drivers/usb/gadget/uvc_v4l2.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/usb/gadget/uvc_v4l2.c b/drivers/usb/gadget/uvc_v4l2.c index c058867ea4fb..ad48e81155e2 100644 --- a/drivers/usb/gadget/uvc_v4l2.c +++ b/drivers/usb/gadget/uvc_v4l2.c @@ -339,6 +339,18 @@ uvc_v4l2_poll(struct file *file, poll_table *wait) return uvc_queue_poll(&uvc->video.queue, file, wait); } +#ifndef CONFIG_MMU +static unsigned long uvc_v4l2_get_unmapped_area(struct file *file, + unsigned long addr, unsigned long len, unsigned long pgoff, + unsigned long flags) +{ + struct video_device *vdev = video_devdata(file); + struct uvc_device *uvc = video_get_drvdata(vdev); + + return uvc_queue_get_unmapped_area(&uvc->video.queue, pgoff); +} +#endif + static struct v4l2_file_operations uvc_v4l2_fops = { .owner = THIS_MODULE, .open = uvc_v4l2_open, @@ -346,5 +358,8 @@ static struct v4l2_file_operations uvc_v4l2_fops = { .ioctl = uvc_v4l2_ioctl, .mmap = uvc_v4l2_mmap, .poll = uvc_v4l2_poll, +#ifndef CONFIG_MMU + .get_unmapped_area = uvc_v4l2_get_unmapped_area, +#endif }; |