1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * Header file for Special Initializers for certain USB Mass Storage devices 4 * 5 * Current development and maintenance by: 6 * (c) 1999, 2000 Matthew Dharm (mdharm-usb@one-eyed-alien.net) 7 * 8 * This driver is based on the 'USB Mass Storage Class' document. This 9 * describes in detail the protocol used to communicate with such 10 * devices. Clearly, the designers had SCSI and ATAPI commands in 11 * mind when they created this document. The commands are all very 12 * similar to commands in the SCSI-II and ATAPI specifications. 13 * 14 * It is important to note that in a number of cases this class 15 * exhibits class-specific exemptions from the USB specification. 16 * Notably the usage of NAK, STALL and ACK differs from the norm, in 17 * that they are used to communicate wait, failed and OK on commands. 18 * 19 * Also, for certain devices, the interrupt endpoint is used to convey 20 * status of a command. 21 */ 22 23 #include "usb.h" 24 #include "transport.h" 25 26 /* 27 * This places the Shuttle/SCM USB<->SCSI bridge devices in multi-target 28 * mode 29 */ 30 int usb_stor_euscsi_init(struct us_data *us); 31 32 /* 33 * This function is required to activate all four slots on the UCR-61S2B 34 * flash reader 35 */ 36 int usb_stor_ucr61s2b_init(struct us_data *us); 37 38 /* This places the HUAWEI E220 devices in multi-port mode */ 39 int usb_stor_huawei_e220_init(struct us_data *us); 40