device driver

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1

Hi all,
i couldn’t able to connect usbd_connect, i am getting error on this api.
please suggest me to connect the USB stack. and i would like to develope a driver for usb bluetooth dongle. please give me some idea.

Thanks
Muthu

2

please give me some idea

3

Muthu,

First, Which version of QNX are you using?

Second, have you started the usb stack (io-usb is only automatically started on later versions of QNX).

Third, when you put in the USB doggle and then do a ‘usb -vv’ command is your dongle reported in the list of usb devices

Fourth, can you post your code or at least the usbd_connect code and the few lines proceeding it that fill out what you are trying to connect to.

Tim

4

Hi,

  1. i am using 6.3.2 latest version only but its evaluated version.

  2. yes its started automatically, when i insert the Bluetooth USB dongle it displays the information about the device.

  3. it is displaying the info about the device when i use ‘usb -vv’ command.

  4. i have mentioned below the code that i am using but it is showing error on ‘usbd_connect’ API.

int hci_usb_start_driver( int argc, char *argv[] )
{
struct usbd_connection *connection;
usbd_funcs_t funcs = { _USBDI_NFUNCS, usb_insertion, hci_usb_removal, NULL };
usbd_device_ident_t interest = { 0xe5e,0x6622,0xe0,0x01,0x01 };
usbd_connect_parm_t parm = { NULL, USB_VERSION, USBD_VERSION, 0, argc, argv, 0, &interest, &funcs, USBD_CONNECT_WAIT };
int status;
int opt;
sigset_t signals;

sigfillset( &signals );					// No signals to resmgr threads
pthread_sigmask( SIG_BLOCK, &signals, NULL );

TAILQ_INIT( &BtCtrl.dlist );
BtCtrl.prefix = "usbbt";

while( ( opt = getopt( argc, argv, "vn:s:w:" ) ) != -1 ) {
	switch( opt ) {
		case 'n':
			BtCtrl.prefix = optarg;
			break;

		case 'v':
			BtCtrl.verbose++;
			break;

		case 's':
			parm.path = optarg;
			break;

		case 'w':
			parm.connect_wait = strtol( optarg, 0, 0 );
			break;

		default:
			break;
	}
}

if( ( BtCtrl.chid = ChannelCreate( _NTO_CHF_DISCONNECT | _NTO_CHF_UNBLOCK ) ) == -1 ||
   ( BtCtrl.coid = ConnectAttach( 0, 0, BtCtrl.chid, _NTO_SIDE_CHANNEL, 0 ) ) == -1 ) {
	fprintf( stderr, "Unable to attach channel and connection\n" );
	return( errno );
}

if( hci_usb_resmgr_init( ) ) {
	fprintf( stderr, "bt:  Resmgr Init Failure\n" );
	return( errno );
}

if( ( status = [color=red]usbd_connect( &parm, &connection ) ) != EOK ) {
	fprintf( stderr, "Bt Class/init - %s\n", strerror( status ) );
	return( status );
}
return( status );

}

please let me get the solution
thanks
Muthu

5
6

undefine reference to usbd_connect ← your missing the library/header you should link to