mirror of
https://github.com/torvalds/linux.git
synced 2024-12-27 21:33:00 +00:00
20 lines
857 B
Plaintext
20 lines
857 B
Plaintext
|
What: /sys/bus/iio/devices/iio:deviceX/buffer/length_align_bytes
|
||
|
|
KernelVersion: 5.4
|
||
|
|
Contact: linux-iio@vger.kernel.org
|
||
|
|
Description:
|
||
|
|
DMA buffers tend to have a alignment requirement for the
|
||
|
|
buffers. If this alignment requirement is not met samples might
|
||
|
|
be dropped from the buffer.
|
||
|
|
|
||
|
|
This property reports the alignment requirements in bytes.
|
||
|
|
This means that the buffer size in bytes needs to be a integer
|
||
|
|
multiple of the number reported by this file.
|
||
|
|
|
||
|
|
The alignment requirements in number of sample sets will depend
|
||
|
|
on the enabled channels and the bytes per channel. This means
|
||
|
|
that the alignment requirement in samples sets might change
|
||
|
|
depending on which and how many channels are enabled. Whereas
|
||
|
|
the alignment requirement reported in bytes by this property
|
||
|
|
will remain static and does not depend on which channels are
|
||
|
|
enabled.
|