From: Gorka Guardiola <paurea@gmail.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] usb/serial control open
Date: Sun, 23 Mar 2014 19:34:50 +0100 [thread overview]
Message-ID: <CACm3i_jSpTnzQWurOEOxWxPBGHMhcWMfRCGha2yOaaoyy0zcLw@mail.gmail.com> (raw)
In-Reply-To: <ef002be39bcabdda15766b9b7581e3ac@mikro.quanstro.net>
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?
>
What do you return on read if you don´t know the state?
For some devices if you don´t 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´t
set the state on every read).
G.
next prev parent reply other threads:[~2014-03-23 18:34 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-23 18:09 erik quanstrom
2014-03-23 18:34 ` Gorka Guardiola [this message]
2014-03-23 18:55 ` erik quanstrom
2014-03-23 19:47 ` Gorka Guardiola
2014-03-23 19:55 ` Gorka Guardiola
2014-03-23 20:32 ` erik quanstrom
2014-03-23 21:08 ` Gorka Guardiola
2014-03-24 1:49 ` erik quanstrom
2014-03-23 21:32 ` Bakul Shah
2014-03-23 21:53 ` erik quanstrom
2014-03-23 22:02 ` Bakul Shah
2014-03-24 0:32 ` erik quanstrom
2014-03-24 0:41 ` Bakul Shah
2014-03-23 5:04 ` lucio
2014-03-23 19:53 ` Gorka Guardiola
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=CACm3i_jSpTnzQWurOEOxWxPBGHMhcWMfRCGha2yOaaoyy0zcLw@mail.gmail.com \
--to=paurea@gmail.com \
--cc=9fans@9fans.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).