This is a note to let you know that I've just added the patch titled
HID:hid-lg4ff: Switch autocentering off when strength is set to zero.
to the 3.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
hid-hid-lg4ff-switch-autocentering-off-when-strength-is-set-to-zero.patch
and it can be found in the queue-3.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From d2c02da549b468bbb28e67d269bd3c9e10683ff5 Mon Sep 17 00:00:00 2001
From: Simon Wood <simon@xxxxxxxxxxxxx>
Date: Wed, 6 Nov 2013 12:30:41 -0700
Subject: HID:hid-lg4ff: Switch autocentering off when strength is set to zero.
From: Simon Wood <simon@xxxxxxxxxxxxx>
commit d2c02da549b468bbb28e67d269bd3c9e10683ff5 upstream.
When the autocenter is set to zero, this patch issues a command to
totally disable the autocenter - this results in less resistance
in the wheel.
Reported-by: Elias Vanderstuyft <elias.vds@xxxxxxxxx>
Signed-off-by: Simon Wood <simon@xxxxxxxxxxxxx>
Signed-off-by: Jiri Kosina <jkosina@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/hid/hid-lg4ff.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
--- a/drivers/hid/hid-lg4ff.c
+++ b/drivers/hid/hid-lg4ff.c
@@ -220,6 +220,20 @@ static void hid_lg4ff_set_autocenter_def
__s32 *value = report->field[0]->value;
__u32 expand_a, expand_b;
+ /* De-activate Auto-Center */
+ if (magnitude == 0) {
+ value[0] = 0xf5;
+ value[1] = 0x00;
+ value[2] = 0x00;
+ value[3] = 0x00;
+ value[4] = 0x00;
+ value[5] = 0x00;
+ value[6] = 0x00;
+
+ hid_hw_request(hid, report, HID_REQ_SET_REPORT);
+ return;
+ }
+
if (magnitude <= 0xaaaa) {
expand_a = 0x0c * magnitude;
expand_b = 0x80 * magnitude;
@@ -236,6 +250,17 @@ static void hid_lg4ff_set_autocenter_def
value[5] = 0x00;
value[6] = 0x00;
+ hid_hw_request(hid, report, HID_REQ_SET_REPORT);
+
+ /* Activate Auto-Center */
+ value[0] = 0x14;
+ value[1] = 0x00;
+ value[2] = 0x00;
+ value[3] = 0x00;
+ value[4] = 0x00;
+ value[5] = 0x00;
+ value[6] = 0x00;
+
hid_hw_request(hid, report, HID_REQ_SET_REPORT);
}
Patches currently in stable-queue which might be from simon@xxxxxxxxxxxxx are
queue-3.12/hid-hid-lg4ff-scale-autocentering-force-properly-on-logitech-wheel.patch
queue-3.12/hid-hid-lg4ff-initialize-device-properties-before-we-touch-autocentering.patch
queue-3.12/hid-hid-lg4ff-switch-autocentering-off-when-strength-is-set-to-zero.patch
queue-3.12/hid-lg-fix-reportdescriptor-for-logitech-formula-vibration.patch
queue-3.12/hid-logitech-lg2ff-add-ids-for-formula-vibration-feedback-wheel.patch
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