pccard_unlock()

Unlock the window of the card in the selected socket

Synopsis:

#include <sys/pccard.h>

int pccard_unlock( pccard_t handle, 
                   int socket, 
                   int index );

Library:

libpccard

Description:

The pccard_unlock() function unlocks a window previously locked by a call to pccard_lock(). It can only unlock a window locked by the same process ID -- you can't unlock a window locked by another process. The parameters are:

handle

Obtained from the call to pccard_attach().

socket

Contains both the socket number as well as the function within the socket. This is achieved by shifting the function number left 8 bits and ORing it with the socket number. The socket number is zero based.

index

The window/function number that's to be unlocked. The window number is obtained from the _pccard_info structure (see pccard_info()).

Returns:

0

Success.

-1

An error occurred (errno is set).

Errors:

EBADF

Invalid handle parameter.

ENODEV

Invalid socket parameter, no PC Card is present in the socket, or invalid index parameter.

Examples:

See pccard_arm().

Classification:

QNX 6

See also:

pccard_arm(), pccard_attach(), pccard_info(), pccard_lock()