Commit ef0f7d18 authored by Bastien Nocera's avatar Bastien Nocera Committed by Greg Kroah-Hartman
Browse files

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: default avatarBastien Nocera <hadess@hadess.net>
Acked-by: default avatarAlan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/20191016093933.693-2-hadess@hadess.net


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 6a9746fb

drivers/usb/core/generic.c

+8 −8
Original line number Diff line number Diff line
@@ -195,7 +195,7 @@ int usb_choose_configuration(struct usb_device *udev) 
}

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;
@@ -222,7 +222,7 @@ static int generic_probe(struct usb_device *udev) 
	return 0;

}



static void generic_disconnect(struct usb_device *udev)

void usb_generic_driver_disconnect(struct usb_device *udev)

{

	usb_notify_remove_device(udev);
@@ -234,7 +234,7 @@ static void generic_disconnect(struct usb_device *udev) 


#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;
@@ -262,7 +262,7 @@ static int generic_suspend(struct usb_device *udev, pm_message_t msg) 
	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;
@@ -285,11 +285,11 @@ static int generic_resume(struct usb_device *udev, pm_message_t msg) 


struct usb_device_driver usb_generic_driver = {

	.name =	"usb",

	.probe = generic_probe,

	.disconnect = generic_disconnect,

	.probe = usb_generic_driver_probe,

	.disconnect = usb_generic_driver_disconnect,

#ifdef	CONFIG_PM

	.suspend = generic_suspend,

	.resume = generic_resume,

	.suspend = usb_generic_driver_suspend,

	.resume = usb_generic_driver_resume,

#endif

	.supports_autosuspend = 1,

};

drivers/usb/core/usb.h

+6 −0
Original line number Diff line number Diff line
@@ -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 int usb_set_configuration(struct usb_device *dev, int configuration);

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,

		struct usb_host_config *c)

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