Belkin F8E211 Guía de usuario descargar pdf (Pagina 54)

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

Detach from the USB device

Synopsis:

#include <sys/usbdi.h>

int usbd

detach( struct usbd device *device );

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().

device An opaque handle from usbd

attach().

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

42 Chapter 4 USB Library Reference November 2, 2006

1 2 ... 49 50 51 52 53 54 55 56 57 58 59 ... 113 114

Momentics 1
Publishing history 2
Technical support options 2
Contents 3
Contents November 2, 2006 4
Index 101 5
About the USB DDK 7
Assumptions 9
Building DDKs 10
. ./setenv.sh 12
. <script> 12
Chapter 1 13
Before You Begin 13
In this chapter.. 13
System requirements 15
USB devices supported 15
Known limitations 16
Chapter 2 19
Overview 19
The USB stack and library 21
How a class driver works 22
Chapter 3 25
USB Utilities 25
Chapter 4 29
USB Library Reference 29
Connection functions 31
Memory-management functions 31
I/O functions 32
Pipe-management functions 32
USBD CONNECT WAIT 48
Examples: 49
Synopsis: 100
Description: 100
Returns: 101
Classiﬁcation: 101
See also: 101
Caveats: 103
November 2, 2006 Index 101 113
102 Index November 2, 2006 114

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Belkin F8E211 Guía de usuario Pagina 54

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