From stern@rowland.harvard.edu Mon Apr 18 09:46:49 2005
Date: Mon, 18 Apr 2005 12:43:25 -0400 (EDT)
From: Alan Stern <stern@rowland.harvard.edu>
To: Greg KH <greg@kroah.com>
cc: Pat LaVarre <p.lavarre@ieee.org>,
USB development list <linux-usb-devel@lists.sourceforge.net>
Subject: USB: g_file_storage: export "stall" parameter
Content-Length: 3349
Lines: 98
This patch changes the g_file_storage driver to make the "stall" module
parameter generally available; currently it is available only if the
testing version of the module has been configured. It also fixes a typo
in a comment -- thanks, Pat!
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Index: gregkh-2.6/drivers/usb/gadget/file_storage.c
===================================================================
--- gregkh-2.6.orig/drivers/usb/gadget/file_storage.c 2005-04-22 14:07:03.000000000 -0700
+++ gregkh-2.6/drivers/usb/gadget/file_storage.c 2005-04-22 14:07:06.000000000 -0700
@@ -81,6 +81,10 @@
* removable Default false, boolean for removable media
* luns=N Default N = number of filenames, number of
* LUNs to support
+ * stall Default determined according to the type of
+ * USB device controller (usually true),
+ * boolean to permit the driver to halt
+ * bulk endpoints
* transport=XXX Default BBB, transport name (CB, CBI, or BBB)
* protocol=YYY Default SCSI, protocol name (RBC, 8020 or
* ATAPI, QIC, UFI, 8070, or SCSI;
@@ -91,14 +95,10 @@
* buflen=N Default N=16384, buffer size used (will be
* rounded down to a multiple of
* PAGE_CACHE_SIZE)
- * stall Default determined according to the type of
- * USB device controller (usually true),
- * boolean to permit the driver to halt
- * bulk endpoints
*
* If CONFIG_USB_FILE_STORAGE_TEST is not set, only the "file", "ro",
- * "removable", and "luns" options are available; default values are used
- * for everything else.
+ * "removable", "luns", and "stall" options are available; default values
+ * are used for everything else.
*
* The pathnames of the backing files and the ro settings are available in
* the attribute files "file" and "ro" in the lun<n> subdirectory of the
@@ -342,14 +342,15 @@
int num_ros;
unsigned int nluns;
+ int removable;
+ int can_stall;
+
char *transport_parm;
char *protocol_parm;
- int removable;
unsigned short vendor;
unsigned short product;
unsigned short release;
unsigned int buflen;
- int can_stall;
int transport_type;
char *transport_name;
@@ -360,11 +361,11 @@
.transport_parm = "BBB",
.protocol_parm = "SCSI",
.removable = 0,
+ .can_stall = 1,
.vendor = DRIVER_VENDOR_ID,
.product = DRIVER_PRODUCT_ID,
.release = 0xffff, // Use controller chip type
.buflen = 16384,
- .can_stall = 1,
};
@@ -380,6 +381,9 @@
module_param_named(removable, mod_data.removable, bool, S_IRUGO);
MODULE_PARM_DESC(removable, "true to simulate removable media");
+module_param_named(stall, mod_data.can_stall, bool, S_IRUGO);
+MODULE_PARM_DESC(stall, "false to prevent bulk stalls");
+
/* In the non-TEST version, only the module parameters listed above
* are available. */
@@ -404,9 +408,6 @@
module_param_named(buflen, mod_data.buflen, uint, S_IRUGO);
MODULE_PARM_DESC(buflen, "I/O buffer size");
-module_param_named(stall, mod_data.can_stall, bool, S_IRUGO);
-MODULE_PARM_DESC(stall, "false to prevent bulk stalls");
-
#endif /* CONFIG_USB_FILE_STORAGE_TEST */
@@ -2658,7 +2659,7 @@
}
}
- /* Check that the LUN values are oonsistent */
+ /* Check that the LUN values are consistent */
if (transport_is_bbb()) {
if (fsg->lun != lun)
DBG(fsg, "using LUN %d from CBW, "