diff options
| author | Oliver Neukum <oliver@neukum.org> | 2009-07-12 23:58:23 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-09-23 06:46:28 -0700 |
| commit | d9bfbd167b4dac51fed4edde7f6cfc378c9aea98 (patch) | |
| tree | 88786a288193cc84f8659eef9bd5484f0df7da00 /drivers/usb/misc | |
| parent | b7800218bccb52dbcb1613bb51425b21441b81f9 (diff) | |
| download | linux-d9bfbd167b4dac51fed4edde7f6cfc378c9aea98.tar.gz | |
USB: full power management support for the idmouse driver
usb: full runtime PM support for idmouse driver - add suspend/resume support - add reset_resume support - add support for autosuspend Signed-off-by: Oliver Neukum <oliver@neukum.org> Tested-by: Andreas Deresch <aderesch@fs.tum.de>
Diffstat (limited to 'drivers/usb/misc')
| -rw-r--r-- | drivers/usb/misc/idmouse.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/usb/misc/idmouse.c b/drivers/usb/misc/idmouse.c index 6da8887538c7..1337a9ce80b9 100644 --- a/drivers/usb/misc/idmouse.c +++ b/drivers/usb/misc/idmouse.c @@ -96,6 +96,8 @@ static int idmouse_probe(struct usb_interface *interface, const struct usb_device_id *id); static void idmouse_disconnect(struct usb_interface *interface); +static int idmouse_suspend(struct usb_interface *intf, pm_message_t message); +static int idmouse_resume(struct usb_interface *intf); /* file operation pointers */ static const struct file_operations idmouse_fops = { @@ -117,7 +119,11 @@ static struct usb_driver idmouse_driver = { .name = DRIVER_SHORT, .probe = idmouse_probe, .disconnect = idmouse_disconnect, + .suspend = idmouse_suspend, + .resume = idmouse_resume, + .reset_resume = idmouse_resume, .id_table = idmouse_table, + .supports_autosuspend = 1, }; static int idmouse_create_image(struct usb_idmouse *dev) @@ -197,6 +203,17 @@ reset: return result; } +/* PM operations are nops as this driver does IO only during open() */ +static int idmouse_suspend(struct usb_interface *intf, pm_message_t message) +{ + return 0; +} + +static int idmouse_resume(struct usb_interface *intf) +{ + return 0; +} + static inline void idmouse_delete(struct usb_idmouse *dev) { kfree(dev->bulk_in_buffer); @@ -235,9 +252,13 @@ static int idmouse_open(struct inode *inode, struct file *file) } else { /* create a new image and check for success */ + result = usb_autopm_get_interface(interface); + if (result) + goto error; result = idmouse_create_image (dev); if (result) goto error; + usb_autopm_put_interface(interface); /* increment our usage count for the driver */ ++dev->open; |