SIMPLE SOLUTIONS

BUS_GET_RESOURCE(9FREEBSD) - Linux man page online | System kernel interfaces

Read a resource range/value with a given resource ID.

Chapter
September 26, 2015
BUS_GET_RESOURCE(9) BSD Kernel Developer's Manual BUS_GET_RESOURCE(9)

NAME

bus_get_resource — read a resource range/value with a given resource ID

SYNOPSIS

#include <sys/param.h> #include <sys/bus.h> #include <sys/rman.h> int bus_get_resource(device_t dev, int type, int rid, rman_res_t *startp, rman_res_t *countp);

DESCRIPTION

The bus_get_resource() function reads the range or value of the resource type, rid pair and stores it in the startp and countp arguments. The arguments are as follows: dev The device to read the resource from. type The type of resource you want to read. It is one of: SYS_RES_IRQ for IRQs SYS_RES_DRQ for ISA DMA lines SYS_RES_MEMORY for I/O memory SYS_RES_IOPORT for I/O ports rid A bus-specific handle that identifies the resource being read. startp A pointer to the start address of this resource. countp A pointer to the length of the resource. For example, the size of the memory in bytes.

RETURN VALUES

Zero is returned on success, otherwise an error is returned.

SEE ALSO

bus_set_resource(9), device(9), driver(9)

AUTHORS

This manual page was written by Sascha Wildner.
BSD September 26, 2015 BSD
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bus_get_resource(9freebsd) referred by bus_set_resource(9freebsd)
refer to bus_set_resource(9freebsd) | device(9freebsd) | driver(9freebsd)
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