Belkin F8E211 Betriebsanweisung PDF herunterladen (Seite 73)

open

pipe()

Initialize the pipe described by the device or endpoint descriptor

Synopsis:

#include <sys/usbdi.h>

int usbd_open_pipe( struct usbd_device *device,

usbd_descriptors_t *desc,

struct usbd_pipe **pipe );

Arguments:

device An opaque handle used to identify the USB device.

desc A pointer to the device or endpoint descriptor that was returned from

usbd

parse

descriptors().

pipe An opaque handle returned by usbd

open

pipe().

Library:

libusbdi

Description:

You use the usbd

open

pipe() function to initialize the pipe described by the endpoint

descriptor.

Returns:

EOK Success.

EINVAL The descriptor isn’t a device or endpoint.

ENOMEM No memory for internal pipe structures.

Classiﬁcation:

QNX Neutrino, QNX 4

Safety

Cancellation point No

Interrupt handler No

Signal handler No

Thread Yes

September 10, 2007 Chapter 4 • USB Library Reference 59

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Belkin F8E211 Betriebsanweisung Seite 73