diff options
Diffstat (limited to 'drivers/media/usb/gspca/w996Xcf.c')
| -rw-r--r-- | drivers/media/usb/gspca/w996Xcf.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/media/usb/gspca/w996Xcf.c b/drivers/media/usb/gspca/w996Xcf.c index fb9fe2ef3a6f..896f1b2b9179 100644 --- a/drivers/media/usb/gspca/w996Xcf.c +++ b/drivers/media/usb/gspca/w996Xcf.c @@ -79,6 +79,8 @@ static void w9968cf_write_fsb(struct sd *sd, u16* data) value = *data++; memcpy(sd->gspca_dev.usb_buf, data, 6); + /* Avoid things going to fast for the bridge with a xhci host */ + udelay(150); ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0, USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, value, 0x06, sd->gspca_dev.usb_buf, 6, 500); @@ -99,6 +101,9 @@ static void w9968cf_write_sb(struct sd *sd, u16 value) if (sd->gspca_dev.usb_err < 0) return; + /* Avoid things going to fast for the bridge with a xhci host */ + udelay(150); + /* We don't use reg_w here, as that would cause all writes when bitbanging i2c to be logged, making the logs impossible to read */ ret = usb_control_msg(sd->gspca_dev.dev, @@ -126,6 +131,9 @@ static int w9968cf_read_sb(struct sd *sd) if (sd->gspca_dev.usb_err < 0) return -1; + /* Avoid things going to fast for the bridge with a xhci host */ + udelay(150); + /* We don't use reg_r here, as the w9968cf is special and has 16 bit registers instead of 8 bit */ ret = usb_control_msg(sd->gspca_dev.dev, |