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Date: Sat, 22 Feb 2003 23:17:19 +0100 (CET)
From: Guennadi Liakhovetski <lyakh@mail.ru>
To: linux-kernel@vger.kernel.org
Subject: 146818 RTC set-time curious...
Message-ID: <Pine.LNX.4.44.0302222311560.7720-100000@poirot.grange>
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Hello

Not a bug report, nothing critical (hopefully), just a question - in rtc.c
driver on time-set ioctl() the following is done:
	save_freq_select = CMOS_READ(RTC_FREQ_SELECT);
	CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT);
which writes 0x7X to rtc regs=ister 0xA... Why? I read a few documents and
all agree on, what's expressed in one of them as "bits 4-6 should be 0x2,
other values don't do anything useful on PCs, really..." VERY curious...

Thanks
Guennadi
---
Guennadi Liakhovetski


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