Belkin F8E211 Guía de usuario descargar pdf (Pagina 81)

 2006, QNX Software Systems GmbH & Co. KG. usbd 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 );

Description:

You use the usbd open pipe() function to initialize the pipe described

by the endpoint descriptor.

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().

Returns:

EINVAL Descriptor isn’t 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

November 2, 2006 Chapter 4 USB Library Reference 69

1 2 ... 76 77 78 79 80 81 82 83 84 85 86 ... 113 114

Sin comentarios

Belkin F8E211 Guía de usuario Pagina 81