diff options
| -rw-r--r-- | drivers/staging/comedi/comedidev.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/staging/comedi/comedidev.h b/drivers/staging/comedi/comedidev.h index cfb7d520d82f..195fa5791c13 100644 --- a/drivers/staging/comedi/comedidev.h +++ b/drivers/staging/comedi/comedidev.h @@ -606,6 +606,17 @@ extern const struct comedi_lrange range_unknown; #define GCC_ZERO_LENGTH_ARRAY 0 #endif +/** + * struct comedi_lrange - Describes a COMEDI range table + * @length: Number of entries in the range table. + * @range: Array of &struct comedi_krange, one for each range. + * + * Each element of @range[] describes the minimum and maximum physical range + * range and the type of units. Typically, the type of unit is %UNIT_volt + * (i.e. volts) and the minimum and maximum are in millionths of a volt. + * There may also be a flag that indicates the minimum and maximum are merely + * scale factors for an unknown, external reference. + */ struct comedi_lrange { int length; struct comedi_krange range[GCC_ZERO_LENGTH_ARRAY]; |