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Commit abe8cee7 authored by Jean-François Moine's avatar Jean-François Moine Committed by Mauro Carvalho Chehab
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[media] gspca - sonixj: Adjust the contrast control 



The contrast was too low. Higher values are better.

Signed-off-by: default avatarJean-François Moine <moinejf@free.fr>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 7d84a179

drivers/media/video/gspca/sonixj.c

+4 −4
Original line number Diff line number Diff line
@@ -159,7 +159,7 @@ static const struct ctrl sd_ctrls[NCTRLS] = { 
#define CONTRAST_MAX 127

		.maximum = CONTRAST_MAX,

		.step    = 1,

		.default_value = 63,

		.default_value = 20,

	    },

	    .set_control = setcontrast

	},
@@ -2021,13 +2021,13 @@ static void setcontrast(struct gspca_dev *gspca_dev) 
	u8 k2;

	u8 contrast[6];



	k2 = sd->ctrls[CONTRAST].val * 0x30 / (CONTRAST_MAX + 1)

				+ 0x10;		/* 10..40 */

	k2 = sd->ctrls[CONTRAST].val * 37 / (CONTRAST_MAX + 1)

				+ 37;		/* 37..73 */

	contrast[0] = (k2 + 1) / 2;		/* red */

	contrast[1] = 0;

	contrast[2] = k2;			/* green */

	contrast[3] = 0;

	contrast[4] = (k2 + 1) / 5;		/* blue */

	contrast[4] = k2 / 5;			/* blue */

	contrast[5] = 0;

	reg_w(gspca_dev, 0x84, contrast, sizeof contrast);

}