[PATCH 4.14 09/31] USB: early: Use new USB product ID and strings for DbC device

From: Greg Kroah-Hartman
Date: Sun Nov 19 2017 - 10:02:50 EST

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


From: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>

commit c67678ec78eff9cf1e7e997fe6c37c9fcccfc5b8 upstream.

The DbC register set defines an interface for system software
to specify the vendor id and product id for the debug device.
These two values will be presented by the debug device in its
device descriptor idVendor and idProduct fields.

The current used product ID is a place holder. We now have a
valid one. The description strings are changed accordingly.

This patch should be back-ported to kernels as old as v4.12,
that contain the commit aeb9dd1de98c ("usb/early: Add driver
for xhci debug capability").

Signed-off-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

drivers/usb/early/xhci-dbc.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

--- a/drivers/usb/early/xhci-dbc.h
+++ b/drivers/usb/early/xhci-dbc.h
@@ -90,8 +90,8 @@ struct xdbc_context {

+#define XDBC_STRING_MANUFACTURER "Linux Foundation"
+#define XDBC_STRING_PRODUCT "Linux USB GDB Target"
#define XDBC_STRING_SERIAL "0001"

struct xdbc_strings {
@@ -103,7 +103,7 @@ struct xdbc_strings {

#define XDBC_PROTOCOL 1 /* GNU Remote Debug Command Set */
#define XDBC_VENDOR_ID 0x1d6b /* Linux Foundation 0x1d6b */
-#define XDBC_PRODUCT_ID 0x0004 /* __le16 idProduct; device 0004 */
+#define XDBC_PRODUCT_ID 0x0011 /* __le16 idProduct; device 0011 */
#define XDBC_DEVICE_REV 0x0010 /* 0.10 */