Input: synaptics - print firmware ID and board number at init

Read the Firmware ID and Board Number from a synaptics device at init
and display them in the system log.

Device behavior is very board and firmware dependent.
It may prove useful for users to include this information when providing
bug reports or other feedback.

Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Acked-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/input/mouse/synaptics.h b/drivers/input/mouse/synaptics.h
index fd26ccca13d7..e594af0b264b 100644
--- a/drivers/input/mouse/synaptics.h
+++ b/drivers/input/mouse/synaptics.h
@@ -18,6 +18,7 @@
 #define SYN_QUE_SERIAL_NUMBER_SUFFIX    0x07
 #define SYN_QUE_RESOLUTION              0x08
 #define SYN_QUE_EXT_CAPAB               0x09
+#define SYN_QUE_FIRMWARE_ID             0x0a
 #define SYN_QUE_EXT_CAPAB_0C            0x0c
 #define SYN_QUE_EXT_MAX_COORDS          0x0d
 #define SYN_QUE_EXT_MIN_COORDS          0x0f
@@ -148,6 +149,8 @@ struct synaptics_hw_state {
 struct synaptics_data {
         /* Data read from the touchpad */
         unsigned long int model_id;             /* Model-ID */
+        unsigned long int firmware_id;          /* Firmware-ID */
+        unsigned long int board_id;             /* Board-ID */
         unsigned long int capabilities;         /* Capabilities */
         unsigned long int ext_cap;              /* Extended Capabilities */
         unsigned long int ext_cap_0c;           /* Ext Caps from 0x0c query */