According to the Ralink driver, there is an MCU command which can be used to send the frequency offset value directly to the USB device without going through the RFCSR writing sequence. Based on the DPO_RT5572_LinuxSTA_2.6.0.1_20120629 driver. Reference: RTMPAdjustFrequencyOffset function in common/rt_rf.c Signed-off-by: Gabor Juhos <juhosg@xxxxxxxxxxx> --- drivers/net/wireless/rt2x00/rt2800lib.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index c990a27..60b4bfe 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -2506,7 +2506,11 @@ static void rt2800_adjust_freq_offset(struct rt2x00_dev *rt2x00dev) if (rfcsr == prev_rfcsr) return; - rt2800_rfcsr_write(rt2x00dev, 17, rfcsr); + if (rt2x00_is_usb(rt2x00dev)) + rt2800_mcu_request(rt2x00dev, 0x74, 0xff, freq_offset, + prev_rfcsr); + else + rt2800_rfcsr_write(rt2x00dev, 17, rfcsr); } static void rt2800_config_channel_rf3290(struct rt2x00_dev *rt2x00dev, -- 1.7.10 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
