QNX Developer Support
|This version of this document is no longer maintained. For the latest documentation, see http://www.qnx.com/developers/docs.|
Disconnect from the PCI server
#include <hw/pci.h> int pci_detach( unsigned handle );
- The value returned by a successful call to pci_attach().
Use the -l c option to qcc to link against this library. This library is usually included automatically.
The pci_detach() function disconnects from the PCI server. Any resources allocated with pci_attach_device() are released.
The pci_attach() function opens a file descriptor against the PCI server, and all of the low-level library calls to the PCI server use this fd. When you call pci_detach(), the low-level code does a close() on the file descriptor, which tells the PCI server to clean up any allocations associated with it.
|Don't call any of the other pci_*() functions after calling pci_detach() (unless you've reattached with pci_attach()).|
pci_attach(), pci_attach_device(), pci_detach_device(), pci_find_class(), pci_find_device(), pci_present(), pci_read_config(), pci_read_config8(), pci_read_config16(), pci_read_config32(), pci_rescan_bus(), pci_write_config(), pci_write_config8(), pci_write_config16(), pci_write_config32()