On Tuesday, June 04, 2013 03:20:26 PM C.B. Wang wrote: > I want to know if the ar9170 chip support 5/10 mhz channels. Maybe. if you care about it, you'll have to look for clues in the original vendor driver (otus - was part of the kernel's staging/ directory for < 2.6.39?) and the original vendor firmware (ar9170fw - you can find a git-tree @ git.sipsolutions.com). Anyway, if you need a definitive "yes" or "no", you should ask Qualcomm Atheros directly. As I can only tell something about the MAC [which does have a 802.11j Mode. It can be enabled by setting bit 3 in AR9170_MAC_REG_POWER_STATE_CTRL.] However, I don't have any information about the PHY/FEM/RF and BB. > The datasheet says it supports 802.11j, but the carl9170 > driver does not provide support. Again, talk to Qualcomm Atheros to find out what needs to be done in order to support it. > Also the radio chip ar9104 has tuning range from 2.3-2.5ghz and > 4.9-6.1ghz,but the driver does not provide any support for these > super channels. Some AR9170 devices do indeed support the 4.9 GHz channels (out of the box). e.g.: Frequencies: * 4920 MHz [-16] (18.0 dBm) * 4940 MHz [-12] (18.0 dBm) * 4960 MHz [-8] (18.0 dBm) * 4980 MHz [-4] (18.0 dBm) * 5040 MHz [8] (18.0 dBm) * 5060 MHz [12] (18.0 dBm) * 5080 MHz [16] (18.0 dBm) However, the device needs to be calibrated for the frequencies to use them legally (the Japanese Market). Look in your kernel logs when the driver is loaded; There should be something like this: > ath: EEPROM regdomain: 0x8xyz > ath: EEPROM indicates we should expect a country code > ath: doing EEPROM country->regdmn map search > ath: Country alpha2 being used: JP <--- JaPan If your country code is not "JP", then you'll have to talk to the manufacturer. Regards, Chr -- 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
