From: Daniel Mack <zonque@gmail.com>
Date: Tue, 16 Apr 2013 16:01:39 +0000 (+0800)
Subject: ALSA: snd-usb: add support for bit-reversed byte formats
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~52^2~31
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=44dcbbb1cd615634c09d1bf31c124332795903a8;p=pandora-kernel.git

ALSA: snd-usb: add support for bit-reversed byte formats

There is quite some confusion around the bit-ordering in DSD samples,
and no general agreement that defines whether hardware is supposed to
expect the oldest sample in the MSB or the LSB of a byte.

ALSA will hence set the rule that on the software API layer, bytes
always carry the oldest bit in the most significant bit of a byte, and
the driver has to translate that at runtime in order to match the
hardware layout.

This patch adds support for this by adding a boolean flag to the
audio format struct.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---

Reading git-diff-tree failed