On Wed, 16 Apr 2008, vcgandhi1@xxxxxxx wrote: > dev_t devt = MKDEV(match->driver->major, match->driver->minor) + > match->port->line; > > One more thing, I use dynamic major and minor number could that be the > problem. Does the driver you test use dynamic Major and Minor Numbers? Doesn't look like 8250.c uses dynamic major and minor numbers. Thanks Guennadi --- Guennadi Liakhovetski -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html