get_sysfs_attr_as_double
Description:
Look up the sysfs attribute with name on this and convert it to a double precision floating
point number using ascii_strtod.
The retrieved value is cached in the device. Repeated calls will return the same value and not open the attribute again, unless updated through one of the "uncached" functions.
Parameters:
| this |
A Device. |
| name |
Name of the sysfs attribute. |
Returns:
|
The value of the sysfs attribute or 0.0 if there is no such attribute. |