There Are Door Lights - hub_ctrl mods

hub_ctrl.py

def send_command(listing, busnum, devnum, hub, port, value, verbose):
    """ send_command(self, parameter_list)

    Sends the power control command to the USB hub. 
    """
    
    if hub == None and busnum == None:
        hub = 0                 # Default hub = 0

    cmd = COMMAND_SET_POWER

    hubs = find_hubs(listing, verbose, busnum, devnum, hub)
    if len(hubs) == 0:
        print("No hubs found.", file=sys.stderr)
        exit(1)

    if hub == None:
        for h in hubs:
            if h['busnum'] == busnum and h['devnum'] == devnum:
                dev_hub = h['dev']
                nports = h['num_ports']
    else:
        dev_hub = hubs[hub]['dev']
        nports = hubs[hub]['num_ports']

    uh = dev_hub.open()

    if cmd == COMMAND_SET_POWER:
        feature = USB_PORT_FEAT_POWER
        index = port
        if value:
            request = usb.REQ_SET_FEATURE
        else:
            request = usb.REQ_CLEAR_FEATURE
    else:
        request = usb.REQ_SET_FEATURE
        feature = USB_PORT_FEAT_INDICATOR
        index = (value << 8) | port
    
    if verbose:
        hub_port_status(uh,nports)
    
    print("Sending control message (requestType= %d, REQUEST=%d, FEATURE=%d, INDEX=%d) " % (USB_RT_PORT, request, feature, index)) 
    uh.controlMsg(requestType = USB_RT_PORT, request = request, value = feature, index = index, buffer = None, timeout = 1000)
    
    print("Sent control message (requestType= %d, REQUEST=%d, FEATURE=%d, INDEX=%d) " % (USB_RT_PORT, request, feature, index))
    if verbose:
        hub_port_status(uh,nports)
    
    del uh