@brief Read the GPIO line consumer name. @param line GPIO line object. @return Name of the GPIO consumer name as it is represented in the kernel. This routine returns a pointer to a null-terminated string or NULL if the line is not used.
See Implementation
@brief Read the GPIO line consumer name. @param line GPIO line object. @return Name of the GPIO consumer name as it is represented in the kernel. This routine returns a pointer to a null-terminated string or NULL if the line is not used.