Belkin F8E211 Uživatelská příručka stáhnout pdf (Strana 44)

usbd

ESRCH USB server not running.

EACCESS Permission denied to USB server.

EAGAIN Can’t create async/callback thread.

Examples:

A class driver (in its main(), probably) for a 3COM Ethernet card might connect like

this:

usbd_device_ident_t interest = {

USB_VENDOR_3COM,

USB_PRODUCT_3COM_3C19250,

USBD_CONNECT_WILDCARD,

};

usbd_funcs_t funcs = {

_USBDI_NFUNCS,

insertion,

removal,

NULL

};

usbd_connect_parm_t cparms = {

NULL,

USB_VERSION,

USBD_VERSION,

argc,

argv,

&interest,

&funcs

};

struct usbd_connection *connection;

int error;

error = usbd_connect(&cparms, &connection);

Classiﬁcation:

QNX Neutrino, QNX 4

Safety

Cancellation point Yes

Interrupt handler No

Signal handler No

Thread Yes

30 Chapter 4 • USB Library Reference September 10, 2007

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Belkin F8E211 Uživatelská příručka Strana 44