@brief Find a GPIO line by its name.
@param name Name of the GPIO line.
@return Returns the GPIO line handle if the line exists in the system or
NULL if it couldn't be located or an error occurred.
If this routine succeeds, the user must manually close the GPIO chip owning
this line to avoid memory leaks. If the line could not be found, this
functions sets errno to ENOENT.
@brief Find a GPIO line by its name. @param name Name of the GPIO line. @return Returns the GPIO line handle if the line exists in the system or NULL if it couldn't be located or an error occurred.
If this routine succeeds, the user must manually close the GPIO chip owning this line to avoid memory leaks. If the line could not be found, this functions sets errno to ENOENT.