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From: David Brownell <david-b-yBeKhBN/0LDR7s880joybQ@public.gmane.org>
To: Trent Piepho <xyzzy-zY4eFNvK5D+xbKUeIHjxjQ@public.gmane.org>
Cc: Kevin Hilman
	<khilman-1D3HCaltpLuhEniVeURVKkEOCMrvLtNR@public.gmane.org>,
	i2c-GZX6beZjE8VD60Wz+7aTrA@public.gmane.org
Subject: Re: Fwd: [PATCH 2/3] I2C: at24: add kernel interface for reading/writing EEPROM
Date: Wed, 27 Aug 2008 00:19:12 -0700	[thread overview]
Message-ID: <200808270019.12987.david-b@pacbell.net> (raw)
In-Reply-To: <Pine.LNX.4.58.0808261852580.2423-nuiHJn5p267P3RPoUHIrnuTW4wlIGRCZ@public.gmane.org>

On Tuesday 26 August 2008, Trent Piepho wrote:
> Lots of tv cards have eeproms with configuration information.  They use an
> I2C driver called tveeprom that exports this:
> 
> int tveeprom_read(struct i2c_client *c, unsigned char *eedata, int len)

That presumes the driver somehow has access to that I2C client.

(Also, that it's an I2C EEPROM.  I keep wanting to have something
usable for SPI EEPROMs and NVRAM too.  But maybe nobody else cares.)

 
> > Last I heard, the U-Boot policy was not to touch controllers that are
> > not required during boot.  Despite relatively common cases like needing
> > to set up MAC addresses ... maybe this patch of Kevin's can make it a
> > bunch easier to cope with that U-Boot policy.  :)
> 
> U-boot can put the MAC address into a property of the MAC's device node in
> the OF device tree (which u-boot passes to the kernel).

Maybe with PowerPC it does.  Not on ARM.  ;)



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  parent reply	other threads:[~2008-08-27  7:19 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-08-26  2:41 Fwd: [PATCH 2/3] I2C: at24: add kernel interface for reading/writing EEPROM David Brownell
     [not found] ` <200808251941.54964.david-b-yBeKhBN/0LDR7s880joybQ@public.gmane.org>
2008-08-26  3:40   ` Jon Smirl
     [not found]     ` <9e4733910808252040j69b10ea8n1e3e40d16e86a3ae-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-08-26 19:37       ` David Brownell
     [not found]         ` <200808261237.29870.david-b-yBeKhBN/0LDR7s880joybQ@public.gmane.org>
2008-08-26 19:55           ` Jon Smirl
     [not found]             ` <9e4733910808261255v23b41f4dha3e345dc54529ca6-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-08-26 20:35               ` David Brownell
     [not found]                 ` <200808261335.36103.david-b-yBeKhBN/0LDR7s880joybQ@public.gmane.org>
2008-08-27  2:04                   ` Trent Piepho
     [not found]                     ` <Pine.LNX.4.58.0808261852580.2423-nuiHJn5p267P3RPoUHIrnuTW4wlIGRCZ@public.gmane.org>
2008-08-27  7:19                       ` David Brownell [this message]
     [not found]                         ` <200808270019.12987.david-b-yBeKhBN/0LDR7s880joybQ@public.gmane.org>
2008-08-27 13:40                           ` Jon Smirl
     [not found]                             ` <9e4733910808270640h2e5fb88fn46548d3630b7f45d-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-08-28 21:19                               ` David Brownell
     [not found]                                 ` <200808281419.47519.david-b-yBeKhBN/0LDR7s880joybQ@public.gmane.org>
2008-08-28 22:53                                   ` Jon Smirl

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