On Tuesday, June 26, 2012 02:10:25 PM Michal Kudelski wrote: > Thank you for the response! Indeed, when I used the latest > compat-wireless, I was able to control the output power. I'm glad I could help. > Now, another question arises: what is the lowest supported > power level? Do you have any hardware specifications of > AR9170 that would say what is the lowest power level > supported by the hardware? No, I'm sorry, but I don't have such a thing (Maybe Adrian knows more). From what I knot, the lowest possible value for the "tpc" registers and the tx descriptor tpc is "0" (there's no "sign" bit so I'm afraid anything lower than 0 is not possible). > With iw/iwconfig commands, the lowest achievable power is > 1 dbm. But I'm thinking about modifying your code in order > to write fixed values to the corresponding registers. And > I need to know what to write into the registers in order > to obtain the lowest possible power :-) . The power is set by: carl9170_tx_rate_tpc_chains in tx.c (for most outgoing frame - except control frames like ACKs/ERP/... which are controlled by carl9170_set_mac_tpc in mac.c) Regards, Christian -- 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
