PATCH: gspca-pac207-framesize.patch

PATCH: gspca-pac207-framesize.patch

[Hans de Goede]

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Hi,

The pac207 only does compression when the usb bandwidth mandates it, so when
in full ress mode but doing low framerates (high exposure) setting it does not
compress. Adjust full res bufsize for this, otherwise things stop working when
the framerate gets too low.

Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>

Regards,

Hans


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The pac207 only does compression when the usb bandwidth mandates it, so when
in full ress mode but doing low framerates (high exposure) setting it does not
compress. Adjust full res bufsize for this, otherwise things stop working when
the framerate gets too low.

Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>

diff -r 3bbf8991628b linux/drivers/media/video/gspca/pac207.c
--- a/linux/drivers/media/video/gspca/pac207.c	Sat Jul 05 13:49:20 2008 +0200
+++ b/linux/drivers/media/video/gspca/pac207.c	Sun Jul 06 08:08:19 2008 +0200
@@ -166,7 +166,9 @@
 		.priv = 1},
 	{352, 288, V4L2_PIX_FMT_PAC207, V4L2_FIELD_NONE,
 		.bytesperline = 352,
-		.sizeimage = 352 * 288 / 2,	/* compressed */
+			/* compressed, but only when needed (not compressed
+			   when the framerate is low) */
+		.sizeimage = (352 + 2) * 288,
 		.colorspace = V4L2_COLORSPACE_SRGB,
 		.priv = 0},
 };

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