linux/usb/phy_companion.h

0001 // SPDX-License-Identifier: GPL-2.0+
0002 /*
0003  * phy-companion.h -- phy companion to indicate the comparator part of PHY
0004  *
0005  * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com
0006  *
0007  * Author: Kishon Vijay Abraham I <kishon@ti.com>
0008  */
0009
0010 #ifndef __DRIVERS_PHY_COMPANION_H
0011 #define __DRIVERS_PHY_COMPANION_H
0012
0013 #include <linux/usb/otg.h>
0014
0015 /* phy_companion to take care of VBUS, ID and srp capabilities */
0016 struct phy_companion {
0017
0018     /* effective for A-peripheral, ignored for B devices */
0019     int (*set_vbus)(struct phy_companion *x, bool enabled);
0020
0021     /* for B devices only:  start session with A-Host */
0022     int (*start_srp)(struct phy_companion *x);
0023 };
0024
0025 #endif /* __DRIVERS_PHY_COMPANION_H */