linux-kernel - Re: RTC-driver kernel 2.6.xxx missing Symbols

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Message-ID: <20090601163609.096e4129@i1501.lan.towertech.it>
Date:	Mon, 1 Jun 2009 16:36:09 +0200
From:	Alessandro Zummo <alessandro.zummo@...ertech.it>
To:	wizant.keidel@...ine.de
Cc:	p_gortmaker@...oo.com, linux-kernel@...r.kernel.org
Subject: Re: RTC-driver kernel 2.6.xxx missing Symbols

On Mon, 01 Jun 2009 15:14:35 +0200
Juergen Keidel <wizant.keidel@...ine.de> wrote:

> ello,
> The actual kernel has a new reworked rtc driving system. before, I think
> 2.6.5, the driver was rtc (rtc.c in drivers/char from  Paul Gortmaker,
> which exported the function rtc_control, rtc_register, rtc_unregister.
> These functions are very useful for drivers wich need acces to the rtc.
> The new rtc-system (rtc-cmos) is missing these functions.
> As I found out, some drivers especially within the sound area are using
> the functionality, so they won't load anymore!
> (sound/core/rtctimer.c)
> Is there a way around with the new system or is it planned to reactivate
> these functionality.

 There's an equivalent functionality which allows any in-kernel user to register
 and receive timing interrupts.

 That said, I think it would be better to use other timing sources.

 Except rtctimer.c, which other driver is using it? When I searched for it,
 rtctimer was the only user and I believe its usage is not widespread.

-- 

 Best regards,

 Alessandro Zummo,
  Tower Technologies - Torino, Italy

  http://www.towertech.it

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