3 files changed, 13 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/sysfs-driver-hid-roccat-savu b/Documentation/ABI/testing/sysfs-driver-hid-roccat-savu
index e23349001288..b42922cf6b1f 100644
--- a/Documentation/ABI/testing/sysfs-driver-hid-roccat-savu
+++ b/Documentation/ABI/testing/sysfs-driver-hid-roccat-savu
@@ -66,3 +66,12 @@ Description:	The mouse can store 5 profiles which can be switched by the
                 The data has to be 3 bytes long.
                 The mouse will reject invalid data.
 Users:          http://roccat.sourceforge.net
+
+What:           /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/savu/roccatsavu<minor>/sensor
+Date:           July 2012
+Contact:        Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:    The mouse has a Avago ADNS-3090 sensor.
+                This file allows reading and writing of the mouse sensors registers.
+                The data has to be 4 bytes long.
+Users:          http://roccat.sourceforge.net
+
diff --git a/drivers/hid/hid-roccat-savu.c b/drivers/hid/hid-roccat-savu.c
index 29e87d712de0..014afba407e0 100644
--- a/drivers/hid/hid-roccat-savu.c
+++ b/drivers/hid/hid-roccat-savu.c
@@ -121,6 +121,7 @@ SAVU_SYSFS_RW(general, GENERAL)
 SAVU_SYSFS_RW(buttons, BUTTONS)
 SAVU_SYSFS_RW(macro, MACRO)
 SAVU_SYSFS_R(info, INFO)
+SAVU_SYSFS_RW(sensor, SENSOR)
 
 static struct bin_attribute savu_bin_attributes[] = {
         SAVU_BIN_ATTRIBUTE_W(control, CONTROL),
@@ -129,6 +130,7 @@ static struct bin_attribute savu_bin_attributes[] = {
         SAVU_BIN_ATTRIBUTE_RW(buttons, BUTTONS),
         SAVU_BIN_ATTRIBUTE_RW(macro, MACRO),
         SAVU_BIN_ATTRIBUTE_R(info, INFO),
+        SAVU_BIN_ATTRIBUTE_RW(sensor, SENSOR),
         __ATTR_NULL
 };
 
diff --git a/drivers/hid/hid-roccat-savu.h b/drivers/hid/hid-roccat-savu.h
index b15a1bbb66fb..9120ba72087f 100644
--- a/drivers/hid/hid-roccat-savu.h
+++ b/drivers/hid/hid-roccat-savu.h
@@ -21,6 +21,7 @@ enum {
         SAVU_SIZE_BUTTONS = 0x2f,
         SAVU_SIZE_MACRO = 0x0823,
         SAVU_SIZE_INFO = 0x08,
+        SAVU_SIZE_SENSOR = 0x04,
 };
 
 enum savu_control_requests {
@@ -35,6 +36,7 @@ enum savu_commands {
         SAVU_COMMAND_BUTTONS = 0x7,
         SAVU_COMMAND_MACRO = 0x8,
         SAVU_COMMAND_INFO = 0x9,
+        SAVU_COMMAND_SENSOR = 0xc,
 };
 
 struct savu_mouse_report_special {