Belkin F8E211 Uživatelská příručka stáhnout pdf (Strana 92)

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

Select the interface for a USB device

Synopsis:

#include <sys/usbdi.h>

int usbd

select interface( struct usbd device *device,

uint8 ifc, uint8 alt );

Description:

You use the usbd select interface() function to select the interface for

a USB device.

device An opaque handle used to identify the USB device.

ifc Interface identiﬁer (

bInterfaceNumber).

alt Alternate identiﬁer (

bAlternateSetting).

Returns:

EOK Success.

ENOMEM No memory for URB.

ENODEV Device was removed.

Classiﬁcation:

QNX Neutrino, QNX 4

Safety

Cancellation point Yes

Interrupt handler No

Signal handler No

Thread Yes

80 Chapter 4 USB Library Reference November 2, 2006

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Belkin F8E211 Uživatelská příručka Strana 92