MAC_CSR10
rt2500usb_register_write(rt2x00dev, MAC_CSR10, erp->slot_time);
rt2x00mmio_register_write(rt2x00dev, MAC_CSR10, 0x0000071c);
rt2x00mmio_register_write(rt2x00dev, MAC_CSR10, 0x00001818);
rt2x00usb_register_write(rt2x00dev, MAC_CSR10, 0x00000718);
rt2x00usb_register_write(rt2x00dev, MAC_CSR10, 0x00001818);