SYNOPSISIn sys/param.h In sys/bus.h
In machine/bus.h In sys/rman.h In machine/resource.h Ft int Fn bus_release_resource device_t dev int type int rid struct resource *r
DESCRIPTIONFree a resource allocated by bus_alloc_resource9. The resource must not be in use on release, i.e., call an appropriate function before (e.g. bus_teardown_intr9 for IRQs).
- Fa dev
- is the device that owns the resource.
- Fa type
- is the type of resource that is released. It must be of the same type you allocated it as before. See bus_alloc_resource9 for valid types.
- Fa rid
- is the resource ID of the resource. The Fa rid value must be the same as the one returned by bus_alloc_resource9.
- Fa r
- is the pointer to struct resource i.e., the resource itself, returned by bus_alloc_resource9.
RETURN VALUESEr EINVAL is returned, if the device Fa dev has no parent, 0 otherwise. The kernel will panic, if it cannot release the resource.
/* deactivate IRQ */ bus_teardown_intr(dev, foosoftc->irqres, foosoftc->irqid); /* release IRQ resource */ bus_release_resource(dev, SYS_RES_IRQ, foosoftc->irqid, foosoftc->irqres); /* release I/O port resource */ bus_release_resource(dev, SYS_RES_IOPORT, foosoftc->portid, foosoftc->portres);
AUTHORSThis manual page was written by An Alexander Langer Aq [email protected] .