diff options
Diffstat (limited to 'include/linux/usb/gadgetfs.h')
| -rw-r--r-- | include/linux/usb/gadgetfs.h | 27 |
1 files changed, 17 insertions, 10 deletions
diff --git a/include/linux/usb/gadgetfs.h b/include/linux/usb/gadgetfs.h index e8654c33872..c291ab1af74 100644 --- a/include/linux/usb/gadgetfs.h +++ b/include/linux/usb/gadgetfs.h @@ -36,7 +36,7 @@ enum usb_gadgetfs_event_type { GADGETFS_DISCONNECT, GADGETFS_SETUP, GADGETFS_SUSPEND, - // and likely more ! + /* and likely more ! */ }; /* NOTE: this structure must stay the same size and layout on @@ -44,21 +44,28 @@ enum usb_gadgetfs_event_type { */ struct usb_gadgetfs_event { union { - // NOP, DISCONNECT, SUSPEND: nothing - // ... some hardware can't report disconnection + /* NOP, DISCONNECT, SUSPEND: nothing + * ... some hardware can't report disconnection + */ - // CONNECT: just the speed + /* CONNECT: just the speed */ enum usb_device_speed speed; - // SETUP: packet; DATA phase i/o precedes next event - // (setup.bmRequestType & USB_DIR_IN) flags direction - // ... includes SET_CONFIGURATION, SET_INTERFACE + /* SETUP: packet; DATA phase i/o precedes next event + *(setup.bmRequestType & USB_DIR_IN) flags direction + * ... includes SET_CONFIGURATION, SET_INTERFACE + */ struct usb_ctrlrequest setup; } u; enum usb_gadgetfs_event_type type; }; +/* The 'g' code is also used by printer gadget ioctl requests. + * Don't add any colliding codes to either driver, and keep + * them in unique ranges (size 0x20 for now). + */ + /* endpoint ioctls */ /* IN transfers may be reported to the gadget driver as complete @@ -68,14 +75,14 @@ struct usb_gadgetfs_event { * THIS returns how many bytes are "unclaimed" in the endpoint fifo * (needed for precise fault handling, when the hardware allows it) */ -#define GADGETFS_FIFO_STATUS _IO('g',1) +#define GADGETFS_FIFO_STATUS _IO('g', 1) /* discards any unclaimed data in the fifo. */ -#define GADGETFS_FIFO_FLUSH _IO('g',2) +#define GADGETFS_FIFO_FLUSH _IO('g', 2) /* resets endpoint halt+toggle; used to implement set_interface. * some hardware (like pxa2xx) can't support this. */ -#define GADGETFS_CLEAR_HALT _IO('g',3) +#define GADGETFS_CLEAR_HALT _IO('g', 3) #endif /* __LINUX_USB_GADGETFS_H */ |