@brief Read the GPIO line name. @param line GPIO line object. @return Name of the GPIO line as it is represented in the kernel. This routine returns a pointer to a null-terminated string or NULL if the line is unnamed.
See Implementation
@brief Read the GPIO line name. @param line GPIO line object. @return Name of the GPIO line as it is represented in the kernel. This routine returns a pointer to a null-terminated string or NULL if the line is unnamed.