1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0+ */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Header file for Special Initializers for certain USB Mass Storage devices 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Current development and maintenance by: 6*4882a593Smuzhiyun * (c) 1999, 2000 Matthew Dharm (mdharm-usb@one-eyed-alien.net) 7*4882a593Smuzhiyun * 8*4882a593Smuzhiyun * This driver is based on the 'USB Mass Storage Class' document. This 9*4882a593Smuzhiyun * describes in detail the protocol used to communicate with such 10*4882a593Smuzhiyun * devices. Clearly, the designers had SCSI and ATAPI commands in 11*4882a593Smuzhiyun * mind when they created this document. The commands are all very 12*4882a593Smuzhiyun * similar to commands in the SCSI-II and ATAPI specifications. 13*4882a593Smuzhiyun * 14*4882a593Smuzhiyun * It is important to note that in a number of cases this class 15*4882a593Smuzhiyun * exhibits class-specific exemptions from the USB specification. 16*4882a593Smuzhiyun * Notably the usage of NAK, STALL and ACK differs from the norm, in 17*4882a593Smuzhiyun * that they are used to communicate wait, failed and OK on commands. 18*4882a593Smuzhiyun * 19*4882a593Smuzhiyun * Also, for certain devices, the interrupt endpoint is used to convey 20*4882a593Smuzhiyun * status of a command. 21*4882a593Smuzhiyun */ 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun #include "usb.h" 24*4882a593Smuzhiyun #include "transport.h" 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun /* 27*4882a593Smuzhiyun * This places the Shuttle/SCM USB<->SCSI bridge devices in multi-target 28*4882a593Smuzhiyun * mode 29*4882a593Smuzhiyun */ 30*4882a593Smuzhiyun int usb_stor_euscsi_init(struct us_data *us); 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun /* 33*4882a593Smuzhiyun * This function is required to activate all four slots on the UCR-61S2B 34*4882a593Smuzhiyun * flash reader 35*4882a593Smuzhiyun */ 36*4882a593Smuzhiyun int usb_stor_ucr61s2b_init(struct us_data *us); 37*4882a593Smuzhiyun 38*4882a593Smuzhiyun /* This places the HUAWEI E220 devices in multi-port mode */ 39*4882a593Smuzhiyun int usb_stor_huawei_e220_init(struct us_data *us); 40