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[060/139] HID: wiimote: fix nunchuck button parser

Message ID 1362062689-2567-61-git-send-email-luis.henriques@canonical.com
State New
Headers show

Commit Message

Luis Henriques Feb. 28, 2013, 2:43 p.m. UTC 
3.5.7.7 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: David Herrmann <dh.herrmann@gmail.com>

commit 89bdd0c6f38ccf0de43d5a36ede384a730f3394e upstream.

The buttons of the Wii Remote Nunchuck extension are actually active low.
Fix the parser to forward the inverted values. The comment in the function
always said "0 == pressed" but the implementation was wrong from the
beginning.

Reported-by: Victor Quicksilver <victor.quicksilver@gmail.com>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 drivers/hid/hid-wiimote-ext.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
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Patch

diff --git a/drivers/hid/hid-wiimote-ext.c b/drivers/hid/hid-wiimote-ext.c
index aa95870..9e57285 100644
--- a/drivers/hid/hid-wiimote-ext.c
+++ b/drivers/hid/hid-wiimote-ext.c
@@ -378,14 +378,14 @@  static void handler_nunchuck(struct wiimote_ext *ext, const __u8 *payload)
 
 	if (ext->motionp) {
 		input_report_key(ext->input,
-			wiiext_keymap[WIIEXT_KEY_Z], !!(payload[5] & 0x04));
+			wiiext_keymap[WIIEXT_KEY_Z], !(payload[5] & 0x04));
 		input_report_key(ext->input,
-			wiiext_keymap[WIIEXT_KEY_C], !!(payload[5] & 0x08));
+			wiiext_keymap[WIIEXT_KEY_C], !(payload[5] & 0x08));
 	} else {
 		input_report_key(ext->input,
-			wiiext_keymap[WIIEXT_KEY_Z], !!(payload[5] & 0x01));
+			wiiext_keymap[WIIEXT_KEY_Z], !(payload[5] & 0x01));
 		input_report_key(ext->input,
-			wiiext_keymap[WIIEXT_KEY_C], !!(payload[5] & 0x02));
+			wiiext_keymap[WIIEXT_KEY_C], !(payload[5] & 0x02));
 	}
 
 	input_sync(ext->input);