From mboxrd@z Thu Jan  1 00:00:00 1970
From: erik quanstrom <quanstro@quanstro.net>
Date: Sun, 23 Mar 2014 14:55:21 -0400
To: 9fans@9fans.net
Message-ID: <40707a306f2cb1caf97b21f639f8a9f5@brasstown.quanstro.net>
In-Reply-To: <CACm3i_jSpTnzQWurOEOxWxPBGHMhcWMfRCGha2yOaaoyy0zcLw@mail.gmail.com>
References: <ef002be39bcabdda15766b9b7581e3ac@mikro.quanstro.net>
	<CACm3i_jSpTnzQWurOEOxWxPBGHMhcWMfRCGha2yOaaoyy0zcLw@mail.gmail.com>
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Subject: Re: [9fans] usb/serial control open
Topicbox-Message-UUID: ce7d2724-ead8-11e9-9d60-3106f5b1d025

On Sun Mar 23 14:35:52 EDT 2014, paurea@gmail.com wrote:
> On Sun, Mar 23, 2014 at 7:09 PM, erik quanstrom <quanstro@quanstro.net>=
 wrote:
> > it seems odd to me that opening the ctl file would
> > reset some serial parameters.  wouldn't it be better
> > to leave them alone?
> >
>=20
> What do you return on read if you don=C2=B4t know the state?
> For some devices if you don=C2=B4t set the state, you have no idea.
> You can do it in read, but it seemed more intuitive in open at the
> time, (and you don=C2=B4t
> set the state on every read).

so if i do this

	echo l7>/dev/eiaU6/eiaUctl
	cat /dev/eiaU6/eiaUctl

that's two opens, isn't it?  then isn't l reset to 8 by the second
open?

- erik