PCI_ReadInfo
PCI
» SWI Calls
» PCI_ReadInfo
PCI_ReadInfo
(SWI &5038B)
| Entry | |
|---|---|
| R0 | Information request |
| R1 | Word aligned buffer to receive results (4 bytes each) |
| R2 | Length of buffer |
| R3 | Function handle |
| Exit | |
|---|---|
| R0 | Preserved ? |
| R1 | Preserved ? |
| R2 | Length of results written |
| R3 | Preserved ? |
Use
The purpose of this call is to return the device and vendor information for the given PCI device.
Notes
The bit settings passed in R0 specifies the information that must be returned.
The string pointers returned point to temporary buffers in the PCI Manager’s workspace so you should take a local copy of the strings as they will be invalidated by the next call.
This call is analogous to Podule_ReadInfo?, for a given R3.
See also
- Podule_ReadInfo?
- PCI_ReadInfo Request
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