HID: roccat: add sysfs attr "reset" for Isku

Isku needs an extra sysfs attr to support device reset.

Signed-off-by: Stefan Achatz <erazor_de@users.sourceforge.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

3 files changed, 12 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/sysfs-driver-hid-roccat-isku b/Documentation/ABI/testing/sysfs-driver-hid-roccat-isku
index 189dc43891bf..9eca5a182e64 100644
--- a/Documentation/ABI/testing/sysfs-driver-hid-roccat-isku
+++ b/Documentation/ABI/testing/sysfs-driver-hid-roccat-isku
@@ -117,6 +117,14 @@ Description:	When written, this file lets one store macros with max 500
                 which profile and key to read.
 Users:          http://roccat.sourceforge.net
 
+What:           /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/reset
+Date:           November 2012
+Contact:        Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:    When written, this file lets one reset the device.
+                The data has to be 3 bytes long.
+                This file is writeonly.
+Users:          http://roccat.sourceforge.net
+
 What:           /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/control
 Date:           June 2011
 Contact:        Stefan Achatz <erazor_de@users.sourceforge.net>
diff --git a/drivers/hid/hid-roccat-isku.c b/drivers/hid/hid-roccat-isku.c
index 020d6cda8975..1219998a02d6 100644
--- a/drivers/hid/hid-roccat-isku.c
+++ b/drivers/hid/hid-roccat-isku.c
@@ -218,6 +218,7 @@ ISKU_SYSFS_RW(last_set, LAST_SET)
 ISKU_SYSFS_W(talk, TALK)
 ISKU_SYSFS_R(info, INFO)
 ISKU_SYSFS_W(control, CONTROL)
+ISKU_SYSFS_W(reset, RESET)
 
 static struct bin_attribute isku_bin_attributes[] = {
         ISKU_BIN_ATTR_RW(macro, MACRO),
@@ -233,6 +234,7 @@ static struct bin_attribute isku_bin_attributes[] = {
         ISKU_BIN_ATTR_W(talk, TALK),
         ISKU_BIN_ATTR_R(info, INFO),
         ISKU_BIN_ATTR_W(control, CONTROL),
+        ISKU_BIN_ATTR_W(reset, RESET),
         __ATTR_NULL
 };
 
diff --git a/drivers/hid/hid-roccat-isku.h b/drivers/hid/hid-roccat-isku.h
index 0062ab50861e..cf6896c83867 100644
--- a/drivers/hid/hid-roccat-isku.h
+++ b/drivers/hid/hid-roccat-isku.h
@@ -27,6 +27,7 @@ enum {
         ISKU_SIZE_LAST_SET = 0x14,
         ISKU_SIZE_LIGHT = 0x0a,
         ISKU_SIZE_MACRO = 0x823,
+        ISKU_SIZE_RESET = 0x03,
         ISKU_SIZE_TALK = 0x10,
 };
 
@@ -53,6 +54,7 @@ enum isku_commands {
         ISKU_COMMAND_MACRO = 0xe,
         ISKU_COMMAND_INFO = 0xf,
         ISKU_COMMAND_LIGHT = 0x10,
+        ISKU_COMMAND_RESET = 0x11,
         ISKU_COMMAND_KEYS_CAPSLOCK = 0x13,
         ISKU_COMMAND_LAST_SET = 0x14,
         ISKU_COMMAND_15 = 0x15,