h6. [[Hardware Abstraction Layer]] h6(. [[HAL entry points from RISC OS]] h6((. » HAL_PCIWriteConfigByte h2. HAL_PCIWriteConfigByte h5. (HAL entry #91) <pre> void HAL_PCIWriteConfigByte(int bus, int devfn, int addr, uint8_t value) </pre> |_<. Entry | | |bus |Bus number to write to | |devfn |Device number to write to | |addr |Address to write to | |value |Byte to write | |_<. Exit | | |- | | h4. Use Writes a configuration byte 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 SWI Calls|PCI SWIs]] instead of talking to the HAL directly. h4. See also * [[HAL PCI API]] h6. Information source: HAL.Tungsten.s.PCIasm in CVS