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HID: ACRUX - activate the device immediately after binding

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This device does not tolerate delayed opening and goes into a coma if
we try to that. Ubuntu even has a crutch for udev that opened the device
upon seeing it for the first time, but it did not work if we happened to
boot with the device attached, since by the time userspace got around
opening the device it was too late. Let's start the device immediately
to deal with this issue.

Reported-by: Sergei Kolzun <x0r@dv-life.ru>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Dmitry Torokhov 2011-03-11 00:27:34 -08:00 committed by Jiri Kosina
parent f635bd11c8
commit 0ae4381097
4 changed files with 37 additions and 8 deletions
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10
drivers/hid/Kconfig
View File

@ -68,9 +68,15 @@ config HID_A4TECH
---help---
Support for A4 tech X5 and WOP-35 / Trust 450L mice.
config HID_ACRUX_FF
tristate "ACRUX force feedback"
config HID_ACRUX
tristate "ACRUX game controller support"
depends on USB_HID
---help---
Say Y here if you want to enable support for ACRUX game controllers.
config HID_ACRUX_FF
tristate "ACRUX force feedback support"
depends on HID_ACRUX
select INPUT_FF_MEMLESS
---help---
Say Y here if you want to enable force feedback support for ACRUX

2
drivers/hid/Makefile
View File

@ -27,7 +27,7 @@ endif
obj-$(CONFIG_HID_3M_PCT) += hid-3m-pct.o
obj-$(CONFIG_HID_A4TECH) += hid-a4tech.o
obj-$(CONFIG_HID_ACRUX_FF) += hid-axff.o
obj-$(CONFIG_HID_ACRUX) += hid-axff.o
obj-$(CONFIG_HID_APPLE) += hid-apple.o
obj-$(CONFIG_HID_BELKIN) += hid-belkin.o
obj-$(CONFIG_HID_CANDO) += hid-cando.o

31
drivers/hid/hid-axff.c
View File

@ -33,6 +33,8 @@
#include <linux/hid.h>
#include "hid-ids.h"
#ifdef CONFIG_HID_ACRUX_FF
#include "usbhid/usbhid.h"
struct axff_device {
@ -109,6 +111,12 @@ err_free_mem:
kfree(axff);
return error;
}
#else
static inline int axff_init(struct hid_device *hid)
{
return 0;
}
#endif
static int ax_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
@ -139,9 +147,25 @@ static int ax_probe(struct hid_device *hdev, const struct hid_device_id *id)
error);
}
/*
* We need to start polling device right away, otherwise
* it will go into a coma.
*/
error = hid_hw_open(hdev);
if (error) {
dev_err(&hdev->dev, "hw open failed\n");
return error;
}
return 0;
}
static void ax_remove(struct hid_device *hdev)
{
hid_hw_close(hdev);
hid_hw_stop(hdev);
}
static const struct hid_device_id ax_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802), },
{ }
@ -149,9 +173,10 @@ static const struct hid_device_id ax_devices[] = {
MODULE_DEVICE_TABLE(hid, ax_devices);
static struct hid_driver ax_driver = {
.name = "acrux",
.id_table = ax_devices,
.probe = ax_probe,
.name = "acrux",
.id_table = ax_devices,
.probe = ax_probe,
.remove = ax_remove,
};
static int __init ax_init(void)

2
drivers/hid/hid-core.c
View File

@ -1289,9 +1289,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) },
#if defined(CONFIG_HID_ACRUX_FF) || defined(CONFIG_HID_ACRUX_FF_MODULE)
{ HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) },
#endif
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ATV_IRCONTROL) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },