Belkin F8E211 Guía de usuario descargar pdf (Pagina 58)

usbd device extra()  2006, QNX Software Systems GmbH & Co. KG.

Get a pointer to the memory allocated by the extra parameter

Synopsis:

#include <sys/usbdi.h>

void *usbd

device extra( struct usbd device *device );

Description:

You use the usbd device extra() function to get a pointer to the

additional memory allocated via the extra parameter in usbd

attach().

Returns:

NULL if no device-speciﬁc memory was allocated by usbd attach().

Classiﬁcation:

QNX Neutrino, QNX 4

Safety

Cancellation point No

Interrupt handler No

Signal handler No

Thread Yes

See also:

usbd args lookup(), usbd attach() usbd conﬁguration descriptor(),

usbd

device lookup(), usbd device descriptor(),

usbd

endpoint descriptor(), usbd hcd info(), usbd hub descriptor(),

usbd

interface descriptor(), usbd languages descriptor(),

usbd

parse descriptors(), usbd string(), usbd urb status()

46 Chapter 4 USB Library Reference November 2, 2006

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Belkin F8E211 Guía de usuario Pagina 58