From: Kalle Valo <kalle.valo@nokia.com>
To: Dan Williams <dcbw@redhat.com>
Cc: "linux-wireless\@vger.kernel.org"
<linux-wireless@vger.kernel.org>,
"Coelho Luciano \(Nokia-D\/Helsinki\)" <Luciano.Coelho@nokia.com>
Subject: Re: wl12xx: driver for TI wl1251 chipset
Date: Tue, 10 Feb 2009 18:23:29 +0200 [thread overview]
Message-ID: <87mycuxnum.fsf@nokia.com> (raw)
In-Reply-To: <1234279279.3119.12.camel@localhost> (ext Dan Williams's message of "Tue\, 10 Feb 2009 16\:21\:19 +0100")
Dan Williams <dcbw@redhat.com> writes:
>> production line tests and pushing the calibration data from user
>> space.
>
> When is the calibration data required
When we boot the firmware, that is during interface up.
> and is it likely to change at runtime?
It's device specific. Each device is calibrated in the factory and the
calibration data is stored to a special partition in the device.
> What I really mean is, if the calibration data isn't required to
> change while the interface is up, maybe use request_firmware() and
> load it at device open time or something?
request_firmware() has access only to the rootfs which the user can
flash anytime he wants. So we would have to create the calibration
file during every boot, or something like that. I guess it's doable
but a bit ugly.
--
Kalle Valo
next prev parent reply other threads:[~2009-02-10 16:24 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-10 10:32 wl12xx: driver for TI wl1251 chipset Kalle Valo
2009-02-10 15:21 ` Dan Williams
2009-02-10 16:23 ` Kalle Valo [this message]
2009-02-10 16:25 ` Dan Williams
2009-02-10 17:18 ` Kalle Valo
2009-02-19 9:19 ` Kalle Valo
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