From a5262dcfda9163ca1f8a64349a6f7ba640ac1dc2 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Mon, 14 May 2007 19:36:41 -0700 Subject: USB: export as Make sure gadgetfs userspace interface is properly exported: - Move to ; - Export it using Kbuild; - Add an #include guard; - Correct some internal documentation; - Update struct layout so it's the same on 32/64 bit kernels. Signed-off-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- include/linux/usb_gadgetfs.h | 75 -------------------------------------------- 1 file changed, 75 deletions(-) delete mode 100644 include/linux/usb_gadgetfs.h (limited to 'include/linux/usb_gadgetfs.h') diff --git a/include/linux/usb_gadgetfs.h b/include/linux/usb_gadgetfs.h deleted file mode 100644 index 8086d5a9b94..00000000000 --- a/include/linux/usb_gadgetfs.h +++ /dev/null @@ -1,75 +0,0 @@ - -#include -#include - -#include - -/* - * Filesystem based user-mode API to USB Gadget controller hardware - * - * Almost everything can be done with only read and write operations, - * on endpoint files found in one directory. They are configured by - * writing descriptors, and then may be used for normal stream style - * i/o requests. When ep0 is configured, the device can enumerate; - * when it's closed, the device disconnects from usb. - * - * Configuration and device descriptors get written to /dev/gadget/$CHIP, - * which may then be used to read usb_gadgetfs_event structs. The driver - * may activate endpoints as it handles SET_CONFIGURATION setup events, - * or earlier; writing endpoint descriptors to /dev/gadget/$ENDPOINT - * then performing data transfers by reading or writing. - */ - -/* - * Events are delivered on the ep0 file descriptor, if the user mode driver - * reads from this file descriptor after writing the descriptors. Don't - * stop polling this descriptor, if you write that kind of driver. - */ - -enum usb_gadgetfs_event_type { - GADGETFS_NOP = 0, - - GADGETFS_CONNECT, - GADGETFS_DISCONNECT, - GADGETFS_SETUP, - GADGETFS_SUSPEND, - // and likely more ! -}; - -struct usb_gadgetfs_event { - enum usb_gadgetfs_event_type type; - union { - // NOP, DISCONNECT, SUSPEND: nothing - // ... some hardware can't report disconnection - - // 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 - struct usb_ctrlrequest setup; - } u; -}; - - -/* endpoint ioctls */ - -/* IN transfers may be reported to the gadget driver as complete - * when the fifo is loaded, before the host reads the data; - * OUT transfers may be reported to the host's "client" driver as - * complete when they're sitting in the FIFO unread. - * 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) - -/* discards any unclaimed data in the fifo. */ -#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) - - -- cgit v1.2.3