linux-toradex.git/drivers/usb/gadget/audio.c, branch v3.4.2

usb: gadget: Add Audio Class 2.0 Driver

2012-02-15T08:10:31+00:00

This is a flexible USB Audio Class 2.0 compliant gadget driver that
implements a simple topology with a virtual sound card exposed at
the function side.

The driver doesn't expect any real audio codec to be present on the
function - the audio streams are simply sinked to and sourced from a
virtual ALSA sound card created. The user-space application may choose
to do whatever it wants with the data received from the USB Host and
choose to provide whatever it wants as audio data to the USB Host.

Capture(USB-Out) and Playback(USB-In) can be run at independent
configurations specified via module parameters while loading the driver.

Make this new version as the default selection by a new Kconfig choice.

Signed-off-by: Yadi Brar 
Signed-off-by: Jassi Brar 
Signed-off-by: Felipe Balbi

usb: gadget: audio: Move string IDs to audio.c

2012-02-15T08:10:25+00:00

Move manufacturer and product string ids into audio.c so
as to be reusable by the new uac2 version of gadget driver.

Signed-off-by: Yadi Brar 
Signed-off-by: Jassi Brar 
Signed-off-by: Felipe Balbi

usb: gadget: Rename audio function to uac1

2012-02-15T08:09:48+00:00

The extant USB-Audio function driver complies to UAC_1 spec.
So name the files accordingly, paving way for inclusion of
a new UAC_2 specified driver.

Signed-off-by: Yadi Brar 
Signed-off-by: Jassi Brar 
Signed-off-by: Felipe Balbi

usb: gadget: add max_speed to usb_composite_driver

2011-07-01T21:27:05+00:00

This field is used by the Gadget drivers to specify
the maximum speed they support, meaning: the maximum
speed they can provide descriptors for.

The driver speed will be set in consideration of this
value.

[ balbi@ti.com : dropped the ifdeffery ]

Signed-off-by: Tatyana Brokhman 
Signed-off-by: Felipe Balbi 
Signed-off-by: Greg Kroah-Hartman

usb gadget: don't save bind callback in struct usb_configuration

2010-10-22T17:21:26+00:00

The bind function is most of the time only called at init time so there
is no need to save a pointer to it in the configuration structure.

This fixes many section mismatches reported by modpost.

Signed-off-by: Uwe Kleine-König 
[m.nazarewicz@samsung.com: updated for -next]
Signed-off-by: Michał Nazarewicz 
Signed-off-by: Greg Kroah-Hartman

usb gadget: don't save bind callback in struct usb_composite_driver

2010-10-22T17:21:25+00:00

The bind function is most of the time only called at init time so there
is no need to save a pointer to it in the composite driver structure.

This fixes many section mismatches reported by modpost.

Signed-off-by: Michał Nazarewicz 
Acked-by: Uwe Kleine-König 
Signed-off-by: Greg Kroah-Hartman

USB: Revert "USB: gadget: section mismatch warning fixed"

2010-10-22T17:21:24+00:00

This reverts a commit which proposed an invalid solution
for a section mismatch.  Next 3 commits will fix it correctly.

Conflicts:

	drivers/usb/gadget/mass_storage.c

Signed-off-by: Michal Nazarewicz 
Signed-off-by: Greg Kroah-Hartman

USB: gadget: section mismatch warning fixed

2010-08-10T21:35:37+00:00

In may gadgets bind and bind like functions were in a init section
as they were only run during initialisation.  However, being
callback functions they were referenced from structures in “normal”
sections.  Changing the tag from “__init” to “__ref” fixes the
warnings.

Signed-off-by: Michal Nazarewicz 
Cc: Kyungmin Park 
Signed-off-by: Greg Kroah-Hartman

USB: audio gadget: free alsa devices when unloading

2009-12-23T19:34:20+00:00

Signed-off-by: Cliff Cai 
Signed-off-by: Mike Frysinger 
Signed-off-by: Greg Kroah-Hartman

USB audio gadget: handle endpoint control requests at the function level

2009-12-11T19:55:15+00:00

Now that control requests targeted at an endpoint can be handled at the
function level, move the UAC-specific control request handling code from
the audio gadget driver to the audio function driver.

Signed-off-by: Laurent Pinchart 
Cc: David Brownell 
Signed-off-by: Greg Kroah-Hartman