cec_phys_addr_validate — validate a physical address from an EDID
int cec_phys_addr_validate ( | u16 phys_addr, |
| u16 * parent, | |
u16 * port); |
phys_addrthe physical address to validate
parent
if not NULL, then this is filled with the parents PA.
port
if not NULL, then this is filled with the input port.
This validates a physical address as read from an EDID. If the PA is invalid (such as 1.0.1.0 since '0' is only allowed at the end), then it will return -EINVAL.
The parent PA is passed into parent and the input port is passed into
port. For example:
PA = 0.0.0.0: has parent 0.0.0.0 and input port 0.
PA = 1.0.0.0: has parent 0.0.0.0 and input port 1.
PA = 3.2.0.0: has parent 3.0.0.0 and input port 2.
PA = f.f.f.f: has parent f.f.f.f and input port 0.