iicbus_reset
error = iicbus_reset(parent, IIC_UNKNOWN, 0, NULL);
DEVMETHOD(iicbus_reset, iicbb_reset),
iicbus_reset(dev, IIC_FASTEST, 0, NULL);
iicbus_reset(dev, IIC_FASTEST, 0, NULL);
DEVMETHOD(iicbus_reset, pcf_rst_card),
iicbus_reset(parent, IIC_FASTEST, 0, NULL);