diff options
Diffstat (limited to 'drivers/usb/core/usb.h')
| -rw-r--r-- | drivers/usb/core/usb.h | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h index cd882203ad3..d450b742137 100644 --- a/drivers/usb/core/usb.h +++ b/drivers/usb/core/usb.h @@ -75,14 +75,15 @@ static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg) #ifdef CONFIG_USB_SUSPEND extern void usb_autosuspend_device(struct usb_device *udev); -extern void usb_try_autosuspend_device(struct usb_device *udev); extern int usb_autoresume_device(struct usb_device *udev); extern int usb_remote_wakeup(struct usb_device *dev); +extern int usb_runtime_suspend(struct device *dev); +extern int usb_runtime_resume(struct device *dev); +extern int usb_runtime_idle(struct device *dev); #else #define usb_autosuspend_device(udev) do {} while (0) -#define usb_try_autosuspend_device(udev) do {} while (0) static inline int usb_autoresume_device(struct usb_device *udev) { return 0; @@ -124,6 +125,19 @@ static inline int is_usb_device_driver(struct device_driver *drv) for_devices; } +/* translate USB error codes to codes user space understands */ +static inline int usb_translate_errors(int error_code) +{ + switch (error_code) { + case 0: + case -ENOMEM: + case -ENODEV: + return error_code; + default: + return -EIO; + } +} + /* for labeling diagnostics */ extern const char *usbcore_name; |