> Actually, why can't you use the GPIO subsystem for something like this? > Can't you export your device as both a usb-serial device and a gpio > device and have things work properly that way? You still need the ioctls even then in order to discover the gpio numbers, and having done that youi've got potential races with unload when you try and open them. You've also got permissions considerations and synchronization between gpio and data problems. It's not a good way to go. It might make sense in some platforms to expose them as both but its not a good general model. I'm currently favouring adding some 'additional control line' bits to termiox. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
