Commit e79412f6 authored Oct 07, 2017 by Oleh Kravchenko Committed by Greg Kroah-Hartman Nov 08, 2017

cx231xx: Fix I2C on Internal Master 3 Bus




[ Upstream commit 6c5da8031a3abfad259190d35f83d89568b72ee2 ]

Internal Master 3 Bus can send and receive only 4 bytes per time.

Signed-off-by: Oleh Kravchenko <oleg@kaa.org.ua>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 4d941aa3

drivers/media/usb/cx231xx/cx231xx-core.c

+6 −1

Original line number	Diff line number	Diff line
		@@ -365,7 +365,12 @@ 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;