rt2800_write_dc
rt2800_write_dc(rt2x00dev, ch_idx, 0, iorq, idx0);
rt2800_write_dc(rt2x00dev, ch_idx, 0, iorq, idx1);
rt2800_write_dc(rt2x00dev, ch_idx, 0, iorq, idxf[iorq]);
rt2800_write_dc(rt2x00dev, ch_idx, 0, 1, 0x21);
rt2800_write_dc(rt2x00dev, ch_idx, 0, 1, 0x00);
rt2800_write_dc(rt2x00dev, ch_idx, 0, 0, 0x00);
rt2800_write_dc(rt2x00dev, ch_idx, 0, 0, 0x21);
rt2800_write_dc(rt2x00dev, ch_idx, 0, 0, 0x00);
rt2800_write_dc(rt2x00dev, ch_idx, 0, 1, 0x00);