Segfault on port operation

Vance Shipley <>
Thu Feb 27 20:24:35 CET 2003


Luke,

You should declare the driver_int function using this macro:

	DRIVER_INIT(tun_driver) {
		...
	}

The function tun_init() is redundant for a dynamically linked driver.
It is called after the driver is loaded (i.e. after driver_init()).

There are of course many functions missing from your driver entry.
Notably you have no function for sending data to the port.  :)

	-Vance


On Thu, Feb 27, 2003 at 06:43:22PM +0100, Luke Gorrie wrote:
}  
}  That aside, can someone tell me if the following code is initializing
}  the linked-in driver entry correctly?
}  
}    ErlDrvEntry tun_driver_entry;
}  
}    ErlDrvEntry *driver_init(void)
}    {
}        memset(&tun_driver_entry, 0, sizeof(tun_driver_entry));
}        tun_driver_entry.init = tun_init;
}        tun_driver_entry.start = tun_start;
}        tun_driver_entry.stop = tun_stop;
}        tun_driver_entry.ready_input = tun_input;
}        tun_driver_entry.control = tun_ctl;
}        tun_driver_entry.driver_name = "tun_drv";
}        return &tun_driver_entry;
}    }
}  
}  Cheers,
}  Luke
}  



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