Belkin F8E211 Betriebsanweisung PDF herunterladen (Seite 48)

usbd

Detach from the USB device

Synopsis:

#include <sys/usbdi.h>

int usbd_detach( struct usbd_device *device );

Arguments:

device An opaque handle from usbd

attach().

Library:

libusbdi

Description:

You use the usbd

detach() function to disconnect from a USB device that you

previously had attached to via usbd

attach().

The usbd

detach() function automatically closes any pipes previously opened via

usbd

open

pipe().

Returns:

EOK Success.

EBUSY I/O pending on the device.

Classiﬁcation:

QNX Neutrino, QNX 4

Safety

Cancellation point Yes

Interrupt handler No

Signal handler No

Thread Yes

Caveats:

Don’t try to detach if there’s I/O pending on the device. If there is, usbd

detach() will

fail.

34 Chapter 4 • USB Library Reference September 10, 2007

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Belkin F8E211 Betriebsanweisung Seite 48