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Date: Fri, 10 May 2019 16:36:51 +0800 From: Chris Chiu <chiu@...lessm.com> To: Daniel Drake <drake@...lessm.com> Cc: Jes Sorensen <jes.sorensen@...il.com>, Kalle Valo <kvalo@...eaurora.org>, David Miller <davem@...emloft.net>, linux-wireless <linux-wireless@...r.kernel.org>, netdev <netdev@...r.kernel.org>, Linux Kernel <linux-kernel@...r.kernel.org>, Linux Upstreaming Team <linux@...lessm.com>, Larry Finger <Larry.Finger@...inger.net> Subject: Re: [RFC PATCH 2/2] rtl8xxxu: Add watchdog to update rate mask by signal strength On Thu, May 9, 2019 at 7:24 PM Daniel Drake <drake@...lessm.com> wrote: > > On Thu, May 9, 2019 at 5:17 PM Chris Chiu <chiu@...lessm.com> wrote: > > I need the vif because there's seems no easy way to get RSSI. Please > > suggest if there's any better idea for this. I believe multiple vifs is for AP > > mode (with more than 1 virtual AP/SSIDs) and the Station+AP coexist > > mode. But the rtl8xxxu driver basically supports only Station mode. > > Yes, the driver only lets you create station interfaces, but it lets > you create several of them. > I'm not sure if that is intentional (and meaningful), or if its a bug. > Maybe you can experiment with multiple station interfaces and see if > it works in a meaningful way? > > Daniel I've verified that multiple virtual interface can not work simultaneously in STA mode. I assigned different mac address for different vifs, I can only bring only one interface up. If I want to bring the second vif up, it always complains "SIOCSIFFLAGS: Device or resource busy". But I'm sure that STA vif can coexist with monitor mode vif. So I may need to add the code login to make the watchdog only work with the vif in STA mode. Then I can also store vif in the rtl8xxxu_priv structure if we presume it only works for station mode. Anyone can suggest whether if this assumption is correct or not? Chris
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