[ECOS] USB slave

[wavecom wavecom <wavecomw at yahoo dot com>]

Hi All,

I have theoretical question about behavior usb-slave
implementation in eCos:

I have implemented  my_class_control_fn:

#define MY_DEF_REQEST 20

usbs_control_return
my_class_control_fn(usbs_control_endpoint* endpoint)
{
    usbs_control_return result =
USBS_CONTROL_RETURN_UNKNOWN;
    usb_devreq*         req    = (usb_devreq*)
endpoint->control_buffer;
    int                 length;
    int                 direction;
    int                 recipient;

    length      = (req->length_hi << 8) |
req->length_lo;
    direction   = req->type &
USB_DEVREQ_DIRECTION_MASK;
    recipient   = req->type &
USB_DEVREQ_RECIPIENT_MASK;

    if (MY_DEF_REQEST == req->request) {
        result =  USBS_CONTROL_RETURN_HANDLED;
    } else {
        result = USBS_CONTROL_RETURN_UNKNOWN;
    }
    return result;
}

Than:
usbs_at91_ep0.class_control_fn = my_class_control_fn;

My question is what eCos should do, when have received
request with bmRequestType CLASS and bRequest = = 
MY_DEF_REQEST?
Would it send ACK, STALL, or would it be other action?

Thanks,
Regards,
Pete



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