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USB: Export generic USB device driver functions 

This will make it possible to implement device drivers which extend the
generic driver without needing to reimplement it.

Signed-off-by: Bastien Nocera <hadess@hadess.net>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/20191016093933.693-2-hadess@hadess.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bastien Nocera 2019-10-16 11:39:28 +02:00 committed by Greg Kroah-Hartman
parent 6a9746fb0b
commit ef0f7d1877
2 changed files with 14 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
drivers/usb/core/generic.c
View File

@ -195,7 +195,7 @@ int usb_choose_configuration(struct usb_device *udev)
} }
EXPORT_SYMBOL_GPL(usb_choose_configuration); EXPORT_SYMBOL_GPL(usb_choose_configuration);
static int generic_probe(struct usb_device *udev) int usb_generic_driver_probe(struct usb_device *udev)
{ {
int err, c; int err, c;
@ -222,7 +222,7 @@ static int generic_probe(struct usb_device *udev)
return 0; return 0;
} }
static void generic_disconnect(struct usb_device *udev) void usb_generic_driver_disconnect(struct usb_device *udev)
{ {
usb_notify_remove_device(udev); usb_notify_remove_device(udev);
@ -234,7 +234,7 @@ static void generic_disconnect(struct usb_device *udev)
#ifdef CONFIG_PM #ifdef CONFIG_PM
static int generic_suspend(struct usb_device *udev, pm_message_t msg) int usb_generic_driver_suspend(struct usb_device *udev, pm_message_t msg)
{ {
int rc; int rc;
@ -262,7 +262,7 @@ static int generic_suspend(struct usb_device *udev, pm_message_t msg)
return rc; return rc;
} }
static int generic_resume(struct usb_device *udev, pm_message_t msg) int usb_generic_driver_resume(struct usb_device *udev, pm_message_t msg)
{ {
int rc; int rc;
@ -285,11 +285,11 @@ static int generic_resume(struct usb_device *udev, pm_message_t msg)
struct usb_device_driver usb_generic_driver = { struct usb_device_driver usb_generic_driver = {
.name = "usb", .name = "usb",
.probe = generic_probe, .probe = usb_generic_driver_probe,
.disconnect = generic_disconnect, .disconnect = usb_generic_driver_disconnect,
#ifdef CONFIG_PM #ifdef CONFIG_PM
.suspend = generic_suspend, .suspend = usb_generic_driver_suspend,
.resume = generic_resume, .resume = usb_generic_driver_resume,
#endif #endif
.supports_autosuspend = 1, .supports_autosuspend = 1,
}; };

6
drivers/usb/core/usb.h
View File

@ -47,6 +47,12 @@ extern void usb_release_bos_descriptor(struct usb_device *dev);
extern char *usb_cache_string(struct usb_device *udev, int index); extern char *usb_cache_string(struct usb_device *udev, int index);
extern int usb_set_configuration(struct usb_device *dev, int configuration); extern int usb_set_configuration(struct usb_device *dev, int configuration);
extern int usb_choose_configuration(struct usb_device *udev); extern int usb_choose_configuration(struct usb_device *udev);
extern int usb_generic_driver_probe(struct usb_device *udev);
extern void usb_generic_driver_disconnect(struct usb_device *udev);
extern int usb_generic_driver_suspend(struct usb_device *udev,
pm_message_t msg);
extern int usb_generic_driver_resume(struct usb_device *udev,
pm_message_t msg);
static inline unsigned usb_get_max_power(struct usb_device *udev, static inline unsigned usb_get_max_power(struct usb_device *udev,
struct usb_host_config *c) struct usb_host_config *c)