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HID: hid-lg4ff: Introduce a module parameter to disable automatic switch of compatibility mode

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Introduce a module parameter to disable automatic switch of Logitech gaming
wheels from compatibility to native mode. This only applies to multimode wheels.

Signed-off-by: Michal Malý <madcatxster@devoid-pointer.net>
Tested-by: Simon Wood <simon@mungewell.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Michal Malý 2015-02-18 17:59:22 +01:00 committed by Jiri Kosina
parent b96d23ec69
commit a54dc7795e
4 changed files with 28 additions and 13 deletions
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7
drivers/hid/hid-lg.c
View file

@ -27,6 +27,7 @@
#include "usbhid/usbhid.h"
#include "hid-ids.h"
#include "hid-lg.h"
#include "hid-lg4ff.h"
#define LG_RDESC 0x001
#define LG_BAD_RELATIVE_KEYS 0x002
@ -818,4 +819,10 @@ static struct hid_driver lg_driver = {
};
module_hid_driver(lg_driver);
#ifdef CONFIG_LOGIWHEELS_FF
int lg4ff_no_autoswitch = 0;
module_param_named(lg4ff_no_autoswitch, lg4ff_no_autoswitch, int, S_IRUGO);
MODULE_PARM_DESC(lg4ff_no_autoswitch, "Do not switch multimode wheels to their native mode automatically");
#endif
MODULE_LICENSE("GPL");

12
drivers/hid/hid-lg.h
View file

@ -24,16 +24,4 @@ int lg3ff_init(struct hid_device *hdev);
static inline int lg3ff_init(struct hid_device *hdev) { return -1; }
#endif
#ifdef CONFIG_LOGIWHEELS_FF
int lg4ff_adjust_input_event(struct hid_device *hid, struct hid_field *field,
struct hid_usage *usage, __s32 value, struct lg_drv_data *drv_data);
int lg4ff_init(struct hid_device *hdev);
int lg4ff_deinit(struct hid_device *hdev);
#else
static inline int lg4ff_adjust_input_event(struct hid_device *hid, struct hid_field *field,
struct hid_usage *usage, __s32 value, struct lg_drv_data *drv_data) { return 0; }
static inline int lg4ff_init(struct hid_device *hdev) { return -1; }
static inline int lg4ff_deinit(struct hid_device *hdev) { return -1; }
#endif
#endif

4
drivers/hid/hid-lg4ff.c
View file

@ -30,6 +30,7 @@
#include "usbhid/usbhid.h"
#include "hid-lg.h"
#include "hid-lg4ff.h"
#include "hid-ids.h"
#define to_hid_device(pdev) container_of(pdev, struct hid_device, dev)
@ -803,7 +804,8 @@ static int lg4ff_handle_multimode_wheel(struct hid_device *hid, u16 *real_produc
/* Switch from "Driving Force" mode to native mode automatically.
* Otherwise keep the wheel in its current mode */
if (reported_product_id == USB_DEVICE_ID_LOGITECH_WHEEL &&
reported_product_id != *real_product_id) {
reported_product_id != *real_product_id &&
!lg4ff_no_autoswitch) {
const struct lg4ff_compat_mode_switch *s;
switch (*real_product_id) {

18
drivers/hid/hid-lg4ff.h Normal file
View file

@ -0,0 +1,18 @@
#ifndef __HID_LG4FF_H
#define __HID_LG4FF_H
#ifdef CONFIG_LOGIWHEELS_FF
extern int lg4ff_no_autoswitch; /* From hid-lg.c */
int lg4ff_adjust_input_event(struct hid_device *hid, struct hid_field *field,
struct hid_usage *usage, __s32 value, struct lg_drv_data *drv_data);
int lg4ff_init(struct hid_device *hdev);
int lg4ff_deinit(struct hid_device *hdev);
#else
static inline int lg4ff_adjust_input_event(struct hid_device *hid, struct hid_field *field,
struct hid_usage *usage, __s32 value, struct lg_drv_data *drv_data) { return 0; }
static inline int lg4ff_init(struct hid_device *hdev) { return -1; }
static inline int lg4ff_deinit(struct hid_device *hdev) { return -1; }
#endif
#endif