This is a note to let you know that I've just added the patch titled cx231xx: Fix I2C on Internal Master 3 Bus to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: cx231xx-fix-i2c-on-internal-master-3-bus.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From foo@baz Mon Nov 6 10:07:35 CET 2017 From: Oleh Kravchenko <oleg@xxxxxxxxxx> Date: Sat, 7 Oct 2017 22:36:52 +0000 Subject: cx231xx: Fix I2C on Internal Master 3 Bus From: Oleh Kravchenko <oleg@xxxxxxxxxx> [ Upstream commit 6c5da8031a3abfad259190d35f83d89568b72ee2 ] Internal Master 3 Bus can send and receive only 4 bytes per time. Signed-off-by: Oleh Kravchenko <oleg@xxxxxxxxxx> Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/media/usb/cx231xx/cx231xx-core.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) --- a/drivers/media/usb/cx231xx/cx231xx-core.c +++ b/drivers/media/usb/cx231xx/cx231xx-core.c @@ -356,7 +356,12 @@ int cx231xx_send_vendor_cmd(struct cx231 */ 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; Patches currently in stable-queue which might be from oleg@xxxxxxxxxx are queue-4.9/cx231xx-fix-i2c-on-internal-master-3-bus.patch