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HAL_PCIWriteConfigHalfword
Hardware Abstraction Layer
HAL entry points from RISC OS
ยป HAL_PCIWriteConfigHalfword
HAL_PCIWriteConfigHalfword
(HAL entry #92)
void HAL_PCIWriteConfigHalfword(int bus, int devfn, int addr, uint16_t value)
| Entry | |
|---|---|
| bus | Bus number to write to |
| devfn | Device number to write to |
| addr | Address to write to |
| value | Halfword to write |
| Exit | |
|---|---|
| - |
Use
Writes a configuration halfword to a device on the PCI bus.
This is an internal call for use by the PCI module and should not be used by user software. User software should use the PCI SWIs instead of talking to the HAL directly.