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From: David Herrmann <dh.herrmann@gmail.com>
To: linux-input@vger.kernel.org
Cc: Jiri Kosina <jkosina@suse.cz>,
	Victor Quicksilver <victor.quicksilver@gmail.com>,
	David Herrmann <dh.herrmann@gmail.com>,
	stable@vger.kernel.org
Subject: [PATCH] HID: wiimote: fix nunchuck button parser
Date: Mon, 18 Feb 2013 01:47:15 +0100	[thread overview]
Message-ID: <1361148435-25567-1-git-send-email-dh.herrmann@gmail.com> (raw)

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.

Cc: stable@vger.kernel.org
Reported-by: Victor Quicksilver <victor.quicksilver@gmail.com>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
---
 drivers/hid/hid-wiimote-ext.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/hid/hid-wiimote-ext.c b/drivers/hid/hid-wiimote-ext.c
index 38ae877..0472191 100644
--- a/drivers/hid/hid-wiimote-ext.c
+++ b/drivers/hid/hid-wiimote-ext.c
@@ -403,14 +403,14 @@ 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);
-- 
1.8.1.3

             reply	other threads:[~2013-02-18  0:47 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-02-18  0:47 David Herrmann [this message]
2013-02-18  9:42 ` [PATCH] HID: wiimote: fix nunchuck button parser Jiri Kosina

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