docs/reference/syscalls/pci_cfg_pio_rw.md

# zx_pci_cfg_pio_rw

## SUMMARY

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This function is obsolete and should not be used.

## DECLARATION

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```c
#include <zircon/syscalls.h>

zx_status_t zx_pci_cfg_pio_rw(zx_handle_t handle,
                              uint8_t bus,
                              uint8_t dev,
                              uint8_t func,
                              uint8_t offset,
                              uint32_t* val,
                              size_t width,
                              uint32_t write);
```

## DESCRIPTION

This function is obsolete and should not be used. Drivers should instead use the PCI protocol
Typically, you obtain this in your **bind()** function through **device_get_protocol()**.

## RIGHTS

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*handle* must have resource kind **ZX_RSRC_KIND_ROOT**.

## RETURN VALUE

TODO(fxbug.dev/32938)

## ERRORS

TODO(fxbug.dev/32938)

## SEE ALSO


TODO(fxbug.dev/32938)