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| author | Ian Abbott <abbotti@mev.co.uk> | 2015-10-27 16:59:21 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-29 08:58:36 +0900 |
| commit | 3b2468fe9854941a175d57642a05aad6f52289c7 (patch) | |
| tree | 398fa8223f9b70cf560c21bec54da1d51957092f | |
| parent | 4e5ffbf29c2042464c64998d2798431c358df251 (diff) | |
| download | op-kernel-dev-3b2468fe9854941a175d57642a05aad6f52289c7.zip op-kernel-dev-3b2468fe9854941a175d57642a05aad6f52289c7.tar.gz | |
staging: comedi: comedi_test: use unsigned short for loopback values
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>
| -rw-r--r-- | drivers/staging/comedi/drivers/comedi_test.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/staging/comedi/drivers/comedi_test.c b/drivers/staging/comedi/drivers/comedi_test.c index 9655dc3..a750f84 100644 --- a/drivers/staging/comedi/drivers/comedi_test.c +++ b/drivers/staging/comedi/drivers/comedi_test.c @@ -70,7 +70,7 @@ struct waveform_private { unsigned long state_bits; unsigned int ai_scan_period; /* AI scan period in usec */ unsigned int ai_convert_period; /* AI conversion period in usec */ - unsigned int ao_loopbacks[N_CHANS]; + unsigned short ao_loopbacks[N_CHANS]; }; /* fake analog input ranges */ |
