Internal Master 3 Bus can send and receive only 4 bytes per time.
Signed-off-by: Oleh Kravchenko <o...@kaa.org.ua>
---
drivers/media/usb/cx231xx/cx231xx-core.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/media/usb/cx231xx/cx231xx-core.c
b/drivers/media/usb/cx231xx/cx231xx-core.c
index 550ec93..46646ec 100644
--- a/drivers/media/usb/cx231xx/cx231xx-core.c
+++ b/drivers/media/usb/cx231xx/cx231xx-core.c
@@ -355,7 +355,12 @@ int cx231xx_send_vendor_cmd(struct cx231xx *dev,
*/
if ((ven_req->wLength > 4) && ((ven_req->bRequest == 0x4) ||
(ven_req->bRequest == 0x5) ||
- (ven_req->bRequest == 0x6))) {
+ (ven_req->bRequest == 0x6) ||
+
+ /* Internal Master 3 Bus can send
+ * and receive only 4 bytes per time
+ */
+ (ven_req->bRequest == 0x2))) {
unsend_size = 0;
pdata = ven_req->pBuff;
--
2.10.2
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