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f97a0944a7
In data blocks of common isochronous packet for MOTU devices, PCM
frames are multiplexed in a shape of '24 bit * 4 Audio Pack', described
in IEC 61883-6. The frames are not aligned to quadlet.
For capture PCM substream, ALSA firewire-motu driver constructs PCM
frames by reading data blocks byte-by-byte. However this operation
includes bug for lower byte of the PCM sample. This brings invalid
content of the PCM samples.
This commit fixes the bug.
Reported-by: Peter Sjöberg <autopeter@gmail.com>
Cc: <stable@vger.kernel.org> # v4.12+
Fixes:
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.. | ||
bebob | ||
dice | ||
digi00x | ||
fireface | ||
fireworks | ||
motu | ||
oxfw | ||
tascam | ||
amdtp-am824.c | ||
amdtp-am824.h | ||
amdtp-stream-trace.h | ||
amdtp-stream.c | ||
amdtp-stream.h | ||
cmp.c | ||
cmp.h | ||
fcp.c | ||
fcp.h | ||
isight.c | ||
iso-resources.c | ||
iso-resources.h | ||
Kconfig | ||
lib.c | ||
lib.h | ||
Makefile | ||
packets-buffer.c | ||
packets-buffer.h |