[ath9k-devel] AP Limitation because of ATH9K_HTC_MAX_STA

[Oleksij Rempel <linux@rempel-privat.de>]

Am 22.11.2013 15:40, schrieb Ben Greear:
> On 11/22/2013 02:23 AM, Oleksij Rempel wrote:
>> Am 20.11.2013 20:01, schrieb Gustavo Azambuja:
>>> Ben, thanks for you reply.
>>> I need to convert my rPi into a AP (is not an option a "real" AP) to
>>> get at less 30 stations. You know some way to get a list of
>>> devices/drivers can support this?
>>
>> It's all about USB, RAM and power.
>> If you use usb to communicate with wireless hardware, then your first
>> problem is usb - it is too slow! Some times it is too slow even for one
>> connection. This is why we have usb wifi adapters with internal cpu, ram
>> and firmware (micro operation system). If you wont to add more
>> connections you will need more ram and may be more cpu power. This will
>> need more power from usb, which is limited to 500mA.
>> In this case, just take some AP, connect it over ethernet and you will
>> get same result.
> 
> The RAM is certainly an issue, but just adding more stations should not
> have much CPU impact as the total throughput is unlikely to increase
> as more stations are added.
> 
> Changing software to make better use of RAM is also unlikely to increase
> power usage, though adding more RAM to the hardware might.

patches are welcome

> Out of curiosity, does anyone know how much RAM is on those adapters?

http://wikidevi.com/wiki/AR9271
http://wikidevi.com/wiki/AR7010

-- 
Regards,
Oleksij