/* Driver for Microtech DPCM-USB CompactFlash/SmartMedia reader * * $Id: dpcm.c,v 1.4 2001/06/11 02:54:25 mdharm Exp $ * * DPCM driver v0.1: * * First release * * Current development and maintenance by: *   (c) 2000 Brian Webb (webbb@earthlink.net) * * This device contains both a CompactFlash card reader, which * uses the Control/Bulk w/o Interrupt protocol and * a SmartMedia card reader that uses the same protocol * as the SDDR09. * * 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; either version 2, or (at your option) any * later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 675 Mass Ave, Cambridge, MA 02139, USA. */#include <linux/config.h>#include <scsi/scsi.h>#include <scsi/scsi_cmnd.h>#include <scsi/scsi_device.h>#include "usb.h"#include "transport.h"#include "protocol.h"#include "debug.h"#include "dpcm.h"#include "sddr09.h"/* * Transport for the Microtech DPCM-USB * */int dpcm_transport(struct scsi_cmnd *srb, struct us_data *us){  int ret;  if(srb == NULL)    return USB_STOR_TRANSPORT_ERROR;  US_DEBUGP("dpcm_transport: LUN=%d\n", srb->device->lun);  switch(srb->device->lun) {  case 0:    /*     * LUN 0 corresponds to the CompactFlash card reader.     */    ret = usb_stor_CB_transport(srb, us);    break;#ifdef CONFIG_USB_STORAGE_SDDR09  case 1:    /*     * LUN 1 corresponds to the SmartMedia card reader.     */    /*     * Set the LUN to 0 (just in case).     */    srb->device->lun = 0; us->srb->device->lun = 0;    ret = sddr09_transport(srb, us);    srb->device->lun = 1; us->srb->device->lun = 1;    break;#endif  default:    US_DEBUGP("dpcm_transport: Invalid LUN %d\n", srb->device->lun);    ret = USB_STOR_TRANSPORT_ERROR;    break;  }  return ret;}