diff options
Diffstat (limited to 'drivers/media/video/gspca')
| -rw-r--r-- | drivers/media/video/gspca/konica.c | 28 |
1 files changed, 18 insertions, 10 deletions
diff --git a/drivers/media/video/gspca/konica.c b/drivers/media/video/gspca/konica.c index 46e1ae402767..bbf91e07e38b 100644 --- a/drivers/media/video/gspca/konica.c +++ b/drivers/media/video/gspca/konica.c @@ -103,7 +103,8 @@ static void reg_w(struct gspca_dev *gspca_dev, u16 value, u16 index) 0, 1000); if (ret < 0) { - pr_err("reg_w err %d\n", ret); + pr_err("reg_w err writing %02x to %02x: %d\n", + value, index, ret); gspca_dev->usb_err = ret; } } @@ -124,7 +125,7 @@ static void reg_r(struct gspca_dev *gspca_dev, u16 value, u16 index) 2, 1000); if (ret < 0) { - pr_err("reg_w err %d\n", ret); + pr_err("reg_r err %d\n", ret); gspca_dev->usb_err = ret; } } @@ -153,16 +154,23 @@ static int sd_config(struct gspca_dev *gspca_dev, /* this function is called at probe and resume time */ static int sd_init(struct gspca_dev *gspca_dev) { - /* HDG not sure if these 2 reads are needed */ - reg_r(gspca_dev, 0, 0x10); - PDEBUG(D_PROBE, "Reg 0x10 reads: %02x %02x", - gspca_dev->usb_buf[0], gspca_dev->usb_buf[1]); - reg_r(gspca_dev, 0, 0x10); - PDEBUG(D_PROBE, "Reg 0x10 reads: %02x %02x", - gspca_dev->usb_buf[0], gspca_dev->usb_buf[1]); + int i; + + /* + * The konica needs a freaking large time to "boot" (approx 6.5 sec.), + * and does not want to be bothered while doing so :| + * Register 0x10 counts from 1 - 3, with 3 being "ready" + */ + msleep(6000); + for (i = 0; i < 20; i++) { + reg_r(gspca_dev, 0, 0x10); + if (gspca_dev->usb_buf[0] == 3) + break; + msleep(100); + } reg_w(gspca_dev, 0, 0x0d); - return 0; + return gspca_dev->usb_err; } static int sd_start(struct gspca_dev *gspca_dev) |