has_sysfs_attr_uncached
Description:
Check if a the sysfs attribute with the given key exists.
The retrieved value is cached in the device. Repeated calls will return the same result and not check for the presence of the attribute again, unless updated through one of the "uncached" functions.
Parameters:
| this |
A Device. |
| key |
Name of sysfs attribute. |
Returns:
|
|