[PATCH 4.14 16/91] USB: serial: ftdi_sio: use jtag quirk for Arrow USB Blaster

From: Greg Kroah-Hartman
Date: Mon Apr 30 2018 - 16:13:34 EST

4.14-stable review patch. If anyone has any objections, please let me know.


From: Vasyl Vavrychuk <vvavrychuk@xxxxxxxxx>

commit 470b5d6f0cf4674be2d1ec94e54283a1770b6a1a upstream.

Arrow USB Blaster integrated on MAX1000 board uses the same vendor ID
(0x0403) and product ID (0x6010) as the "original" FTDI device.

This patch avoids picking up by ftdi_sio of the first interface of this
USB device. After that this device can be used by Arrow user-space JTAG

Signed-off-by: Vasyl Vavrychuk <vvavrychuk@xxxxxxxxx>
Cc: stable <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

drivers/usb/serial/ftdi_sio.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1902,7 +1902,8 @@ static int ftdi_8u2232c_probe(struct usb
return ftdi_jtag_probe(serial);

if (udev->product &&
- (!strcmp(udev->product, "BeagleBone/XDS100V2") ||
+ (!strcmp(udev->product, "Arrow USB Blaster") ||
+ !strcmp(udev->product, "BeagleBone/XDS100V2") ||
!strcmp(udev->product, "SNAP Connect E10")))
return ftdi_jtag_probe(serial);