Some PID compliant devices automatically play effects after boot (i.e.
autocenter spring) that prevent the rendering of other effects since
it is done outside the kernel driver.
This makes sure all the effects currently played are stopped after
resetting the device.
It brings compatibility to the Brunner CLS-P joystick and others
Signed-off-by: Tomasz Pakuła <tomasz.pakula.oficjalny@xxxxxxxxx>
---
drivers/hid/usbhid/hid-pidff.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/hid/usbhid/hid-pidff.c b/drivers/hid/usbhid/hid-pidff.c
index cc02c5d1bd04..d5749020549c 100644
--- a/drivers/hid/usbhid/hid-pidff.c
+++ b/drivers/hid/usbhid/hid-pidff.c
@@ -109,8 +109,9 @@ static const u8 pidff_pool[] = { 0x80, 0x83, 0xa9 };
/* Special field key tables used to put special field keys into arrays */
#define PID_ENABLE_ACTUATORS 0
-#define PID_RESET 1
-static const u8 pidff_device_control[] = { 0x97, 0x9a };
+#define PID_STOP_ALL_EFFECTS 1
+#define PID_RESET 2
+static const u8 pidff_device_control[] = { 0x97, 0x99, 0x9a };
#define PID_CONSTANT 0
#define PID_RAMP 1
@@ -1240,6 +1241,10 @@ static void pidff_reset(struct pidff_device *pidff)
hid_hw_request(hid, pidff->reports[PID_DEVICE_CONTROL], HID_REQ_SET_REPORT);
hid_hw_wait(hid);
+ pidff->device_control->value[0] = pidff->control_id[PID_STOP_ALL_EFFECTS];
+ hid_hw_request(hid, pidff->reports[PID_DEVICE_CONTROL], HID_REQ_SET_REPORT);
+ hid_hw_wait(hid);
+
pidff->device_control->value[0] =
pidff->control_id[PID_ENABLE_ACTUATORS];
hid_hw_request(hid, pidff->reports[PID_DEVICE_CONTROL], HID_REQ_SET_REPORT);
--
2.47.1
