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4 Commits

Author SHA1 Message Date
Peter Chen e92b9d449d usb: gadget: uac2: add req_number as parameter 
There are only two requests for uac2, it may not be enough at high
loading system which usb interrupt handler can't be serviced on
time, then the data will be lost since it is isoc transfer for audio.

In this patch, we introduce a parameter for the number for usb request,
and the user can override it if current number for request is not enough
for his/her use case.

Besides, update this parameter for legacy audio gadget and documentation.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
 2017-01-24 11:04:21 +02:00
Andrzej Pietrasiewicz 3aeea3c53e usb: gadget: f_uac2: add configfs support 
Add support for using f_uac2 function as a component of a gadget
composed with configfs.

Tested-by: Sebastian Reimers <sebastian.reimers@googlemail.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
 2014-08-20 14:04:42 -05:00
Andrzej Pietrasiewicz 065a107cdd usb: gadget: f_uac2: use defined constants as defaults 
When configfs is integrated the same values will have to be used
as defaults. Use symbolic names in order not to duplicate magic numbers.

Tested-by: Sebastian Reimers <sebastian.reimers@googlemail.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
 2014-08-20 14:04:38 -05:00
Andrzej Pietrasiewicz f8f93d244a usb: gadget: f_uac2: convert to new function interface with backward compatibility 
Converting uac2 to the new function interface requires converting
the USB uac2's function code and its users.

This patch converts the f_uac2.c to the new function interface.

The file is now compiled into a separate usb_f_uac2.ko module.

The old function interface is provided by means of a preprocessor
conditional directives. After all users are converted, the old interface
can be removed.

Tested-by: Sebastian Reimers <sebastian.reimers@googlemail.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
 2014-08-20 14:04:16 -05:00