release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/usb/storage/initializers.h

   1 /* Header file for Special Initializers for certain USB Mass Storage devices
   2  *
   3  * Current development and maintenance by:
   4  *   (c) 1999, 2000 Matthew Dharm (mdharm-usb@one-eyed-alien.net)
   5  *
   6  * This driver is based on the 'USB Mass Storage Class' document. This
   7  * describes in detail the protocol used to communicate with such
   8  * devices.  Clearly, the designers had SCSI and ATAPI commands in
   9  * mind when they created this document.  The commands are all very
  10  * similar to commands in the SCSI-II and ATAPI specifications.
  11  *
  12  * It is important to note that in a number of cases this class
  13  * exhibits class-specific exemptions from the USB specification.
  14  * Notably the usage of NAK, STALL and ACK differs from the norm, in
  15  * that they are used to communicate wait, failed and OK on commands.
  16  *
  17  * Also, for certain devices, the interrupt endpoint is used to convey
  18  * status of a command.
  19  *
  20  * Please see http://www.one-eyed-alien.net/~mdharm/linux-usb for more
  21  * information about this driver.
  22  *
  23  * This program is free software; you can redistribute it and/or modify it
  24  * under the terms of the GNU General Public License as published by the
  25  * Free Software Foundation; either version 2, or (at your option) any
  26  * later version.
  27  *
  28  * This program is distributed in the hope that it will be useful, but
  29  * WITHOUT ANY WARRANTY; without even the implied warranty of
  30  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  31  * General Public License for more details.
  32  *
  33  * You should have received a copy of the GNU General Public License along
  34  * with this program; if not, write to the Free Software Foundation, Inc.,
  35  * 675 Mass Ave, Cambridge, MA 02139, USA.
  36  */
  37
  38 #include "usb.h"
  39 #include "transport.h"
  40
  41 /* This places the Shuttle/SCM USB<->SCSI bridge devices in multi-target
  42  * mode */
  43 int usb_stor_euscsi_init(struct us_data *us);
  44
  45 /* This function is required to activate all four slots on the UCR-61S2B
  46  * flash reader */
  47 int usb_stor_ucr61s2b_init(struct us_data *us);
  48
  49 /* This places the HUAWEI E220 devices in multi-port mode */
  50 int usb_stor_huawei_e220_init(struct us_data *us);