From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oleksij Rempel Date: Fri, 22 Nov 2013 15:47:20 +0100 Subject: [ath9k-devel] AP Limitation because of ATH9K_HTC_MAX_STA In-Reply-To: <528F6CC4.5080404@candelatech.com> References: <51DA79B6.8030702@djardin.de> <528D063F.5050008@candelatech.com> <528F30B2.6000805@rempel-privat.de> <528F6CC4.5080404@candelatech.com> Message-ID: <528F6E78.10903@rempel-privat.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ath9k-devel@lists.ath9k.org 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