HAL_PCIReadConfigHalfword (changes)
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Hardware Abstraction Layer
HAL entry points from RISC OS
ยป HAL_PCIReadConfigHalfword
HAL_PCIReadConfigHalfword
(HAL entry #89)
uint16_t HAL_PCIReadConfigHalfword(int bus, int devfn, int addr)
| Entry | |
|---|---|
| bus | Bus number to read from |
| devfn | Device number to read from |
| addr | Address to read from |
| Exit | |
|---|---|
| - | Returns the read halfword |
Use
Reads a configuration halfword from 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.
See also
Information source: HAL.Tungsten.s.PCIasm in CVS
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