GPIOMAXNAME
strlcpy(req->gp_name, nm->gp_name, GPIOMAXNAME);
char pin_defname[GPIOMAXNAME]; /* default name */
char gp_name[GPIOMAXNAME];
char gp_name2[GPIOMAXNAME]; /* new name */
char gp_name[GPIOMAXNAME]; /* pin name */
char gp_name[GPIOMAXNAME];