Belkin F8E211 Uživatelská příručka stáhnout pdf (Strana 87)

setup

control()

addr The address for the start of the transfer. You must use the buffer allocated

by usbd

alloc().

len The length (in bytes) of the data transfer.

Library:

libusbdi

Description:

This routine sets up a URB for a control transfer.

Returns:

EOK Success.

Classiﬁcation:

QNX Neutrino, QNX 4

Safety

Cancellation point No

Interrupt handler No

Signal handler No

Thread Yes

Caveats:

To ensure that the correct physical address will be used, you must use the buffer

allocated by usbd

alloc() for the addr parameter.

See also:

usbd

descriptor(), usbd

feature(), usbd

io(), usbd

setup

bulk(),

usbd

setup

interrupt(), usbd

setup

isochronous(), usbd

setup

vendor(),

usbd

status()

September 10, 2007 Chapter 4 • USB Library Reference 73

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Belkin F8E211 Uživatelská příručka Strana 87