10.3 Device_t pointer

Device_t is the pointer type for the device structure. Here we consider only the methods interesting from the device driver writer's standpoint. The methods to manipulate values in the device structure are:

A convenience function device_printf(dev, fmt, ...) may be used to print the messages from the device driver. It automatically prepends the unitname and colon to the message.

The device_t methods are implemented in the file kern/bus_subr.c.

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