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V4L/DVB (13994): gscpa_stv0680: Fix camera initialization on hotplug

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stv0680 cameras currently only work when already plugged in when the system
boots (or when manually re-loading the driver after boot). This patch fixes
this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans de Goede 2010-01-07 12:04:04 -03:00 committed by Mauro Carvalho Chehab
parent 9336960d07
commit ab269d300e
1 changed files with 4 additions and 0 deletions
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4
drivers/media/video/gspca/stv0680.c
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@ -138,6 +138,10 @@ static int sd_config(struct gspca_dev *gspca_dev,
struct sd *sd = (struct sd *) gspca_dev;
struct cam *cam = &gspca_dev->cam;
/* Give the camera some time to settle, otherwise initalization will
fail on hotplug, and yes it really needs a full second. */
msleep(1000);
/* ping camera to be sure STV0680 is present */
if (stv_sndctrl(gspca_dev, 0, 0x88, 0x5678, 0x02) != 0x02 ||
gspca_dev->usb_buf[0] != 0x56 || gspca_dev->usb_buf[1] != 0x78) {