HID: fix pb_fnmode and move it to generic HID

The apple powerbook people are used to switch the pb_fnmode
setting at runtime through writing to sysfs, altering the
module parameter value. This was broken for them in 2.6.20-rc1
when generic HID layer was introduced, as the pb_fnmode flag
was made per-hiddevice, instead of global variable.

This patch moves the pb_fnmode module parameter from usbhid module
to hid module, but apart from that retains backward compatibility
with respect to changing the mode through sysfs.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>

1 files changed, 8 insertions, 3 deletions

diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 981fcf01d41b..c7a6833f6821 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -35,6 +35,11 @@
 
 #include <linux/hid.h>
 
+static int hid_pb_fnmode = 1;
+module_param_named(pb_fnmode, hid_pb_fnmode, int, 0644);
+MODULE_PARM_DESC(pb_fnmode,
+                "Mode of fn key on PowerBooks (0 = disabled, 1 = fkeyslast, 2 = fkeysfirst)");
+
 #define unk     KEY_UNKNOWN
 
 static const unsigned char hid_keyboard[256] = {
@@ -154,7 +159,7 @@ static int hidinput_pb_event(struct hid_device *hid, struct input_dev *input,
                 return 1;
         }
 
-        if (hid->pb_fnmode) {
+        if (hid_pb_fnmode) {
                 int do_translate;
 
                 trans = find_translation(powerbook_fn_keys, usage->code);
@@ -163,8 +168,8 @@ static int hidinput_pb_event(struct hid_device *hid, struct input_dev *input,
                                 do_translate = 1;
                         else if (trans->flags & POWERBOOK_FLAG_FKEY)
                                 do_translate =
-                                        (hid->pb_fnmode == 2 &&  (hid->quirks & HID_QUIRK_POWERBOOK_FN_ON)) ||
-                                        (hid->pb_fnmode == 1 && !(hid->quirks & HID_QUIRK_POWERBOOK_FN_ON));
+                                        (hid_pb_fnmode == 2 &&  (hid->quirks & HID_QUIRK_POWERBOOK_FN_ON)) ||
+                                        (hid_pb_fnmode == 1 && !(hid->quirks & HID_QUIRK_POWERBOOK_FN_ON));
                         else
                                 do_translate = (hid->quirks & HID_QUIRK_POWERBOOK_FN_ON);