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Date: Thu, 28 Feb 2002 15:43:05 +0100 (CET)
From: Roman Zippel <zippel@linux-m68k.org>
To: Jaroslav Kysela <perex@suse.cz>
cc: Pavel Machek <pavel@suse.cz>, LKML <linux-kernel@vger.kernel.org>
Subject: Re: Patch - sharing RTC timer between kernel and user space
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Hi,

On Thu, 28 Feb 2002, Jaroslav Kysela wrote:

> Using the RTC timer is optional. The default timer is system timer, of 
> course.

Who is setting up this timer? This patch can also be done in userspace:

	fd = open("/dev/rtc",...);
	ioctl(alsafd, RTCFD, fd);

in the alsa driver you can do:

	file = fget(fd);
	...
	if (file->f_op && file->f_op->ioctl)
		file->f_op->ioctl(file->f_dentry->d_inode, file, cmd, arg);
	...
	fput(file);

bye, Roman

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