| /* | |
| * Provides code common for host and device side USB. | |
| * | |
| * This program is free software; you can redistribute it and/or | |
| * modify it under the terms of the GNU General Public License as | |
| * published by the Free Software Foundation, version 2. | |
| * | |
| * If either host side (ie. CONFIG_USB=y) or device side USB stack | |
| * (ie. CONFIG_USB_GADGET=y) is compiled in the kernel, this module is | |
| * compiled-in as well. Otherwise, if either of the two stacks is | |
| * compiled as module, this file is compiled as module as well. | |
| */ | |
| #include <linux/kernel.h> | |
| #include <linux/module.h> | |
| #include <linux/usb/ch9.h> | |
| const char *usb_speed_string(enum usb_device_speed speed) | |
| { | |
| static const char *const names[] = { | |
| [USB_SPEED_UNKNOWN] = "UNKNOWN", | |
| [USB_SPEED_LOW] = "low-speed", | |
| [USB_SPEED_FULL] = "full-speed", | |
| [USB_SPEED_HIGH] = "high-speed", | |
| [USB_SPEED_WIRELESS] = "wireless", | |
| [USB_SPEED_SUPER] = "super-speed", | |
| }; | |
| if (speed < 0 || speed >= ARRAY_SIZE(names)) | |
| speed = USB_SPEED_UNKNOWN; | |
| return names[speed]; | |
| } | |
| EXPORT_SYMBOL_GPL(usb_speed_string); | |
| MODULE_LICENSE("GPL"); |