patch-2.4.0-test9 linux/drivers/usb/storage/initializers.c

• Lines: 61
• Date: Fri Sep 8 16:39:12 2000
• Orig file: v2.4.0-test8/linux/drivers/usb/storage/initializers.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.0-test8/linux/drivers/usb/storage/initializers.c linux/drivers/usb/storage/initializers.c
@@ -0,0 +1,60 @@
+/* Special Initializers for certain USB Mass Storage devices
+ *
+ * $Id: initializers.c,v 1.2 2000/09/06 22:35:57 mdharm Exp $
+ *
+ * Current development and maintenance by:
+ *   (c) 1999, 2000 Matthew Dharm (mdharm-usb@one-eyed-alien.net)
+ *
+ * This driver is based on the 'USB Mass Storage Class' document. This
+ * describes in detail the protocol used to communicate with such
+ * devices.  Clearly, the designers had SCSI and ATAPI commands in
+ * mind when they created this document.  The commands are all very
+ * similar to commands in the SCSI-II and ATAPI specifications.
+ *
+ * It is important to note that in a number of cases this class
+ * exhibits class-specific exemptions from the USB specification.
+ * Notably the usage of NAK, STALL and ACK differs from the norm, in
+ * that they are used to communicate wait, failed and OK on commands.
+ *
+ * Also, for certain devices, the interrupt endpoint is used to convey
+ * status of a command.
+ *
+ * Please see http://www.one-eyed-alien.net/~mdharm/linux-usb for more
+ * information about this driver.
+ *
+ * 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 "initializers.h"
+#include "debug.h"
+
+/* This places the Shuttle/SCM USB<->SCSI bridge devices in multi-target
+ * mode */
+int usb_stor_euscsi_init(struct us_data *us)
+{
+	unsigned char data = 0x1;
+	int result;
+
+	US_DEBUGP("Attempting to init eUSCSI bridge...\n");
+	result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0),
+			0x0C, USB_RECIP_INTERFACE | USB_TYPE_VENDOR,
+			0x01, 0x0, &data, 0x1, 5*HZ);
+	US_DEBUGP("-- result is %d\n", result);
+	US_DEBUGP("-- data afterwards is %d\n", data);
+
+	return 0;
+}
+
+