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Re: state updates on porting of dde linux26

From: Da Zheng
Subject: Re: state updates on porting of dde linux26
Date: Wed, 12 May 2010 17:12:56 +0800
User-agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv: Gecko/20100317 Thunderbird/3.0.4

On 10-5-12 上午6:14, Samuel Thibault wrote:
> Hello,
> I do not have the time to try it myself, just commenting:
> Da Zheng, le Tue 11 May 2010 09:35:34 +0800, a écrit :
>> Linux drivers use jiffies to measure time. Unfortunately, Mach doesn't
>> provide it
> Mmm, but Mach's time device provides a read-only page where the current
> time is available. Isn't that enough?
Mach provides the time in seconds and microseconds, but the Linux drivers need
jiffies. DDE has to convert microseconds into jiffies so `jiffies' in the
porting of DDE is defined as a macro instead of a variable. It sometimes causes
some troubles because some Linux structures have a field named jiffies.

Zheng Da

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