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authorMichal Nazarewicz <mina86@mina86.com>2012-11-06 21:52:36 (GMT)
committerFelipe Balbi <balbi@ti.com>2012-11-08 14:01:04 (GMT)
commitfa06920a3ece1ed43333992d35c0044e7a6c048a (patch)
tree757f13372f75107d2c8a3006ddc9bf3efb470eab /Documentation/usb
parent77614e0250611fbeeb94b12e0a0b7f281fe61329 (diff)
usb: gadget: Remove File-backed Storage Gadget (g_file_storage).
The File-backed Storage Gadget (g_file_storage) gadget has been replaced with Mass Storage Gadget (g_mass_storage) which uses the composite framework. This commit removes g_file_storage (and most references to it). Signed-off-by: Michal Nazarewicz <mina86@mina86.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'Documentation/usb')
-rw-r--r--Documentation/usb/mass-storage.txt15
1 files changed, 7 insertions, 8 deletions
diff --git a/Documentation/usb/mass-storage.txt b/Documentation/usb/mass-storage.txt
index e9b9334..59063ad 100644
--- a/Documentation/usb/mass-storage.txt
+++ b/Documentation/usb/mass-storage.txt
@@ -20,9 +20,9 @@
This document describes how to use the gadget from user space, its
relation to mass storage function (or MSF) and different gadgets
- using it, and how it differs from File Storage Gadget (or FSG). It
- will talk only briefly about how to use MSF within composite
- gadgets.
+ using it, and how it differs from File Storage Gadget (or FSG)
+ (which is no longer included in Linux). It will talk only briefly
+ about how to use MSF within composite gadgets.
* Module parameters
@@ -198,16 +198,15 @@
The Mass Storage Function and thus the Mass Storage Gadget has been
based on the File Storage Gadget. The difference between the two is
that MSG is a composite gadget (ie. uses the composite framework)
- while file storage gadget is a traditional gadget. From userspace
+ while file storage gadget was a traditional gadget. From userspace
point of view this distinction does not really matter, but from
kernel hacker's point of view, this means that (i) MSG does not
duplicate code needed for handling basic USB protocol commands and
(ii) MSF can be used in any other composite gadget.
- Because of that, File Storage Gadget has been deprecated and
- scheduled to be removed in Linux 3.8. All users need to transition
- to the Mass Storage Gadget by that time. The two gadgets behave
- mostly the same from the outside except:
+ Because of that, File Storage Gadget has been removed in Linux 3.8.
+ All users need to transition to the Mass Storage Gadget. The two
+ gadgets behave mostly the same from the outside except:
1. In FSG the “removable” and “cdrom” module parameters set the flag
for all logical units whereas in MSG they accept a list of y/n

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