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pci_detach()

Disconnect from the PCI server

Synopsis:

#include <hw/pci.h>

int pci_detach( unsigned handle );

Arguments:

handle

The value returned by a successful call to pci_attach().

Library:

libc

Use the -l c option to qcc to link against this library. This library is usually included automatically.

Description:

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.

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Don't call any of the other pci_*() functions after calling pci_detach() (unless you've reattached with pci_attach()).

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Returns:

PCI_SUCCESS.

Classification:

QNX Neutrino

Safety:
Cancellation point	Yes
Interrupt handler	No
Signal handler	Yes
Thread	Yes

See also:

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()

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