1 files changed, 7 insertions, 62 deletions
diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index 9b29e8e..7ad4f81 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -44,12 +44,12 @@
  * function for a USB device, it also illustrates a technique of
  * double-buffering for increased throughput.
  *
- * Function supports multiple logical units (LUNs).  Backing storage
- * for each LUN is provided by a regular file or a block device.
- * Access for each LUN can be limited to read-only.  Moreover, the
- * function can indicate that LUN is removable and/or CD-ROM.  (The
- * later implies read-only access.)
- *
+ * For more information about MSF and in particular its module
+ * parameters and sysfs interface read the
+ * <Documentation/usb/mass-storage.txt> file.
+ */
+
+/*
  * MSF is configured by specifying a fsg_config structure.  It has the
  * following fields:
  *
@@ -95,61 +95,6 @@
  * data track and no audio tracks; hence there need be only one
  * backing file per LUN.
  *
- *
- * MSF includes support for module parameters.  If gadget using it
- * decides to use it, the following module parameters will be
- * available:
- *
- *	file=filename[,filename...]
- *			Names of the files or block devices used for
- *				backing storage.
- *	ro=b[,b...]	Default false, boolean for read-only access.
- *	removable=b[,b...]
- *			Default false, boolean for removable media.
- *	cdrom=b[,b...]	Default false, boolean for whether to emulate
- *				a CD-ROM drive.
- *	nofua=b[,b...]	Default false, booleans for ignore FUA flag
- *				in SCSI WRITE(10,12) commands
- *	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.
- *
- * The module parameters may be prefixed with some string.  You need
- * to consult gadget's documentation or source to verify whether it is
- * using those module parameters and if it does what are the prefixes
- * (look for FSG_MODULE_PARAMETERS() macro usage, what's inside it is
- * the prefix).
- *
- *
- * Requirements are modest; only a bulk-in and a bulk-out endpoint are
- * needed.  The memory requirement amounts to two 16K buffers, size
- * configurable by a parameter.  Support is included for both
- * full-speed and high-speed operation.
- *
- * Note that the driver is slightly non-portable in that it assumes a
- * single memory/DMA buffer will be useable for bulk-in, bulk-out, and
- * interrupt-in endpoints.  With most device controllers this isn't an
- * issue, but there may be some with hardware restrictions that prevent
- * a buffer from being used by more than one endpoint.
- *
- *
- * The pathnames of the backing files, the ro settings and nofua
- * settings are available in the attribute files "file", "ro" and
- * "nofua" in the lun<n> subdirectory of the gadget's sysfs directory.
- * If the "removable" option is set, writing to these files will
- * simulate ejecting/loading the medium (writing an empty line means
- * eject) and adjusting a write-enable tab.  Changes to the ro setting
- * are not allowed when the medium is loaded or if CD-ROM emulation is
- * being used.
- *
- * When a LUN receive an "eject" SCSI request (Start/Stop Unit),
- * if the LUN is removable, the backing file is released to simulate
- * ejection.
- *
- *
  * This function is heavily based on "File-backed Storage Gadget" by
  * Alan Stern which in turn is heavily based on "Gadget Zero" by David
  * Brownell.  The driver's SCSI command interface was based on the
@@ -191,7 +136,7 @@
  * In normal operation the main thread is started during the gadget's
  * fsg_bind() callback and stopped during fsg_unbind().  But it can
  * also exit when it receives a signal, and there's no point leaving
- * the gadget running when the thread is dead.  At of this moment, MSF
+ * the gadget running when the thread is dead.  As of this moment, MSF
  * provides no way to deregister the gadget when thread dies -- maybe
  * a callback functions is needed.
  *