Управление параметрами модуля Virt2real Wi-Fi 1.0
Содержание |
Описание модуля Wi-Fi 1.0
Тонкая настройка
При включённой в ядре опции DEBUG_FS появляется возможность управлять некоторыми параметрами модуля Wi-Fi. В частности, настройками спящего режима модуля.
Различные параметры представлены в виде файлов, которые находятся в каталоге
/sys/kernel/debug/lbs_wireless/wlan0
[root@virt2real wlan0]# ls hostsleep registers/ subscribed_events/ info sleepparams
Описание параметров
sleepparams
Используется для установки параметров счётчика спящего режима
Путь: /sys/kernel/debug/lbs_wireless/wlan0/sleepparams
Использование:
прочитать текущие настройки счётчика спящего режима
cat sleepparams
установить новые параметры счётчика спящего режима
echo "p1 p2 p3 p4 p5 p6" > sleepparams
где
p1 is Sleep clock error in ppm (0-65535)
p2 is Wakeup offset in usec (0-65535)
p3 is Clock stabilization time in usec (0-65535)
p4 is Control periodic calibration (0-2)
p5 is Control the use of external sleep clock (0-2)
p6 is reserved for debug (0-65535)
hostsleep
Используется для включения/выключения спячки хоста (т.е. Виртурилки), такой функционал пока не проверялся.
Примечение: перед установкой этого параметра требуется предварительная настройка с помощью утилиты ethtool. Что-то вроде параметра со значением "wol". Список доступных ключей утилиты можно посмотреть командой ethtool -h
Путь: /sys/kernel/debug/lbs_wireless/wlan0/hostsleep
Использование:
Прочитать текущее значение
cat hostsleep
Записать новое значение (1 - включить спячку хоста, 0 - отключить спячку хоста)
echo "1" > hostsleep echo "0" > hostsleep
subscribed_events
The subscribed_events directory contains the interface for the subscribed events API.
Path: /sys/kernel/debug/lbs_wireless/wlan0/subscribed_events/
Each event is represented by a filename. Each filename consists of the following three fields:
Value Frequency Subscribed
To read the current values for a given event, do:
cat event
To set the current values, do:
echo "60 2 1" > event
Frequency field specifies the reporting frequency for this event. If it is set to 0, then the event is reported only once, and then automatically unsubscribed. If it is set to 1, then the event is reported every time it occurs. If it is set to N, then the event is reported every Nth time it occurs.
beacon_missed Value field specifies the number of consecutive missing beacons which triggers the LINK_LOSS event. This event is generated only once after which the firmware resets its state. At initialization, the LINK_LOSS event is subscribed by default. The default value of MissedBeacons is 60.
failure_count Value field specifies the consecutive failure count threshold which triggers the generation of the MAX_FAIL event. Once this event is generated, the consecutive failure count is reset to 0. At initialization, the MAX_FAIL event is NOT subscribed by default.
high_rssi This event is generated when the average received RSSI in beacons goes above a threshold, specified by Value.
low_rssi This event is generated when the average received RSSI in beacons goes below a threshold, specified by Value.
high_snr This event is generated when the average received SNR in beacons goes above a threshold, specified by Value.
low_snr This event is generated when the average received SNR in beacons goes below a threshold, specified by Value.
registers
Различные регистры модуля Wi-Fi
Путь: /sys/kernel/debug/lbs_wireless/wlan0/registers/
rdmac
rdbbp
rdrf
These commands are used to read the MAC, BBP and RF registers from the card. These commands take one parameter that specifies the offset location that is to be read. This parameter must be specified in hexadecimal (its possible to precede preceding the number with a "0x").
Usage:
echo "0xa123" > rdmac ; cat rdmac echo "0xa123" > rdbbp ; cat rdbbp echo "0xa123" > rdrf ; cat rdrf
wrmac wrbbp wrrf
These commands are used to write the MAC, BBP and RF registers in the card. These commands take two parameters that specify the offset location and the value that is to be written. This parameters must be specified in hexadecimal (its possible to precede the number with a "0x").
Usage:
echo "0xa123 0xaa" > wrmac echo "0xa123 0xaa" > wrbbp echo "0xa123 0xaa" > wrrf
