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 * Please see http://www.one-eyed-alien.net/~mdharm/linux-usb for more 23 * information about this driver. 24 * 25 * This program is free software; you can redistribute it and/or modify it 26 * under the terms of the GNU General Public License as published by the 27 * Free Software Foundation; either version 2, or (at your option) any 28 * later version. 29 * 30 * This program is distributed in the hope that it will be useful, but 31 * WITHOUT ANY WARRANTY; without even the implied warranty of 32 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 33 * General Public License for more details. 34 * 35 * You should have received a copy of the GNU General Public License along 36 * with this program; if not, write to the Free Software Foundation, Inc., 37 * 675 Mass Ave, Cambridge, MA 02139, USA. 38 */ 39 40 #include "usb.h" 41 #include "transport.h" 42 43 /* 44 * This places the Shuttle/SCM USB<->SCSI bridge devices in multi-target 45 * mode 46 */ 47 int usb_stor_euscsi_init(struct us_data *us); 48 49 /* 50 * This function is required to activate all four slots on the UCR-61S2B 51 * flash reader 52 */ 53 int usb_stor_ucr61s2b_init(struct us_data *us); 54 55 /* This places the HUAWEI E220 devices in multi-port mode */ 56 int usb_stor_huawei_e220_init(struct us_data *us); 57