staging: comedi: comedi_test: use unsigned short for loopback values

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The last sample values written to the AO subdevice channels by its
"insn_write" handler `waveform_ao_insn_write()` are stored in the member
array `ao_loopbacks[]` in the device private data `struct
waveform_private`.  They can be read back via the "insn_read" handler of
the AI subdevice `waveform_ai_insn_read()`.  As the stored sample values
are only 16 bits wide, change the type of the `ao_loopbacks[]` member to
`unsigned short` to save some space.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Ian Abbott 2015-10-27 16:59:21 +00:00 • committed by Greg Kroah-Hartman

parent 4e5ffbf29c

commit 3b2468fe98

1 changed files with 1 additions and 1 deletions

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drivers/staging/comedi/drivers/comedi_test.c

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