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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 ); 

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

See also:

usbd_abort_pipe(), usbd_close_pipe(), usbd_pipe_endpoint(), usbd_reset_pipe()

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