rtl2830_bulk_write
ret = rtl2830_bulk_write(client, 0x195,
ret = rtl2830_bulk_write(client, 0x119, buf, 3);
ret = rtl2830_bulk_write(client, 0x11c, &bw_params1[i][0], 17);
ret = rtl2830_bulk_write(client, 0x12d, &bw_params1[i][17], 17);
ret = rtl2830_bulk_write(client, 0x19d, bw_params2[i], 6);
ret = rtl2830_bulk_write(client, 0x062, buf, 4);
ret = rtl2830_bulk_write(client, 0x066 + 2 * index, buf, 2);
ret = rtl2830_bulk_write(client, 0x18f, "\x28\x00", 2);