linux-toradex.git/Documentation/firmware_class, branch v3.10.78

firmware loader: document firmware cache mechanism

2012-11-14T23:07:18+00:00

This patch documents the firmware cache mechanism so that
users of request_firmware() know that it can be called
safely inside device's suspend and resume callback, and
the device's firmware needn't be cached any more by individual
driver itself to deal with firmware loss during system resume.

Signed-off-by: Ming Lei 
Signed-off-by: Greg Kroah-Hartman

firmware loader: introduce module parameter to customize(v4) fw search path

2012-11-14T23:07:18+00:00

This patch introduces one module parameter of 'path' in firmware_class
to support customizing firmware image search path, so that people can
use its own firmware path if the default built-in paths can't meet their
demand[1], and the typical usage is passing the below from kernel command
parameter when 'firmware_class' is built in kernel:

	firmware_class.path=$CUSTOMIZED_PATH

[1], https://lkml.org/lkml/2012/10/11/337

Cc: Linus Torvalds 
Signed-off-by: Ming Lei 
Signed-off-by: Greg Kroah-Hartman

firmware loader: document kernel direct loading

2012-10-25T18:53:36+00:00

This patch adds description on recently introduced direct firmware
loading by Linus.

Cc: Linus Torvalds 
Signed-off-by: Ming Lei 
Signed-off-by: Greg Kroah-Hartman

firmware: Update hotplug script

2010-08-05T20:53:34+00:00

Update the in-kernel hotplug example script to work
properly with recent kernels. Without this fix the
script may load the firmware twice - both at "add"
and "remove" time.

The second load only triggers in the case when multiple
firmware images are used. A good example is the b43
driver which does not work properly without this fix.

Signed-off-by: Magnus Damm 
Signed-off-by: Greg Kroah-Hartman

driver core: fix documentation of request_firmware_nowait

2009-06-16T04:30:24+00:00

request_firmware_nowait declares it can be called in non-sleep contexts,
but kthead_run called by request_firmware_nowait may sleep. So fix its
documentation and comment to make callers clear about it.

Signed-off-by: Ming Lei 
Signed-off-by: Greg Kroah-Hartman

firmware: move firmware_class from Documentation/ to samples/

2008-04-20T02:10:20+00:00

Move the firmware_class sample drivers to samples/ so that they are
buildable and can be maintained.

Signed-off-by: Randy Dunlap 
Acked-by: Marcel Holtmann 
Signed-off-by: Greg Kroah-Hartman

doc firmware_sample_firmware_class.c: kmalloc + memset conversion to kzalloc

2007-10-17T15:42:50+00:00

 Documentation/firmware_class/firmware_sample_firmware_class.c | 5246 -> 5211 (-35 bytes)

Signed-off-by: Mariusz Kozlowski 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

sysfs: add parameter "struct bin_attribute *" in .read/.write methods for sysfs binary attributes

2007-07-11T23:09:09+00:00

Well, first of all, I don't want to change so many files either.

What I do:
Adding a new parameter "struct bin_attribute *" in the
.read/.write methods for the sysfs binary attributes.

In fact, only the four lines change in fs/sysfs/bin.c and
include/linux/sysfs.h do the real work.
But I have to update all the files that use binary attributes
to make them compatible with the new .read and .write methods.
I'm not sure if I missed any. :(

Why I do this:
For a sysfs attribute, we can get a pointer pointing to the
struct attribute in the .show/.store method,
while we can't do this for the binary attributes.
I don't know why this is different, but this does make it not
so handy to use the binary attributes as the regular ones.
So I think this patch is reasonable. :)

Who benefits from it:
The patch that exposes ACPI tables in sysfs
requires such an improvement.
All the table binary attributes share the same .read method.
Parameter "struct bin_attribute *" is used to get
the table signature and instance number which are used to
distinguish different ACPI table binary attributes.

Without this parameter, we need to offer different .read methods
for different ACPI table binary attributes.
This is impossible as there are various ACPI tables on different
platforms, and we don't know what they are until they are loaded.

Signed-off-by: Zhang Rui 
Signed-off-by: Greg Kroah-Hartman

firmware: remove orphaned Email

2007-06-08T19:41:08+00:00

Manuel Estrada Sainz passed away on May 9th 2004, his email account got
deactivated. He was in charge of the firmware_class code, and still got
CC'ed in recent discussions about it.

Signed-off-by: Markus Rechberger 
Signed-off-by: Greg Kroah-Hartman

[PATCH] drivers/base/firmware_class.c: cleanups

2006-05-21T19:59:19+00:00

- remove the following global function that is both unused and
  unimplemented:
  - register_firmware()

- make the following needlessly global function static:
  - firmware_class_uevent()

Signed-off-by: Adrian Bunk 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds