diff options
Diffstat (limited to 'sys/kern/bus_if.m')
| -rw-r--r-- | sys/kern/bus_if.m | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/sys/kern/bus_if.m b/sys/kern/bus_if.m index de808ded6386..96fbda884618 100644 --- a/sys/kern/bus_if.m +++ b/sys/kern/bus_if.m @@ -297,6 +297,30 @@ METHOD int deactivate_resource { }; /** + * @brief Adjust a resource + * + * Adjust the start and/or end of a resource allocated by + * BUS_ALLOC_RESOURCE. At least part of the new address range must overlap + * with the existing address range. If the successful, the resource's range + * will be adjusted to [start, end] on return. + * + * @param _dev the parent device of @p _child + * @param _child the device which allocated the resource + * @param _type the type of resource + * @param _res the resource to adjust + * @param _start the new starting address of the resource range + * @param _end the new ending address of the resource range + */ +METHOD int adjust_resource { + device_t _dev; + device_t _child; + int _type; + struct resource *_res; + u_long _start; + u_long _end; +}; + +/** * @brief Release a resource * * Free a resource allocated by the BUS_ALLOC_RESOURCE. The @p _rid |