[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Message-Id: <20111123.035744.1607233076642546274.davem@davemloft.net>
Date: Wed, 23 Nov 2011 03:57:44 -0500 (EST)
From: David Miller <davem@...emloft.net>
To: sgruszka@...hat.com
Cc: Larry.Finger@...inger.net, linville@...driver.com,
linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org, IvDoorn@...il.com,
gwingerde@...il.com, helmut.schaa@...glemail.com,
hedayaty@...il.com
Subject: Re: pull request: wireless 2011-11-22
From: Stanislaw Gruszka <sgruszka@...hat.com>
Date: Wed, 23 Nov 2011 09:03:54 +0100
> The main problem here, that we have hardware (or firmware) that
> generate interrupt with empty interrupt status register, so we can
> not detect if interrupt is really generated by Ralink device.
>
> Perhaps exist good fix for that problem, i.e. we can write to some
> register to stop hardware generating spurious interrupts, or exist
> other way than reading status register to find out if Ralink device
> generated interrupt. But that require detailed hardware knowledge,
> and I'm not sure if we ever can get such informations. Also this
> could be a hardware bug, device just generate spurious interrupts
> and we can not do anything about it. I looked at driver from Ralink
> site, and it do exactly that, it return IRQ_HANDLED if status register
> is empty.
Then it is also buggy :-)
> Ok, I'm thinking about other fix now ...
Thank you.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists