table of contents
| REGION_INTERSECTS(9) | Hardware Interfaces | REGION_INTERSECTS(9) |
NAME¶
region_intersects - determine intersection of region with known resources
SYNOPSIS¶
int region_intersects(resource_size_t start, size_t size, const char * name, unsigned long flags);
ARGUMENTS¶
start
region start address
size
size of region
name
name of resource (in iomem_resource)
flags
flags of resource (in iomem_resource)
DESCRIPTION¶
Check if the specified region partially overlaps or fully eclipses a resource identified by name. Return REGION_DISJOINT if the region does not overlap name, return REGION_MIXED if the region overlaps type and another resource, and return REGION_INTERSECTS if the region overlaps type and no other defined resource. Note, that REGION_INTERSECTS is also returned in the case when the specified region overlaps with undefined memory holes.
COPYRIGHT¶
| June 2023 | Kernel Hackers Manual 3.10 |