From: Oliver Neukum <oneukum@suse.com>
To: Johan Hovold <johan@kernel.org>, macpaul.lin@mediatek.com
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
wsd_upstream@mediatek.com, linux-usb@vger.kernel.org
Subject: cdc-acm: fix abnormal DATA RX issue for Mediatek Preloader.
Date: Thu, 13 Dec 2018 11:13:54 +0100 [thread overview]
Message-ID: <1544696034.11160.5.camel@suse.com> (raw)
On Do, 2018-12-13 at 10:43 +0100, Johan Hovold wrote:
> On Thu, Dec 13, 2018 at 11:27:56AM +0800, macpaul.lin@mediatek.com wrote:
> > From: Macpaul Lin <macpaul.lin@mediatek.com>
> >
> > + /* handle active handshake triggered by device */
> > + if (quirks == DISABLE_ECHO)
> > + acm_tty_driver->init_termios.c_lflag &= ~(ECHO);
>
> You cannot change the driver init_termios like this as that will affect
> all cdc-acm devices that are probed later. If this is at all needed,
> this will have to be done at tty install time.
Right. How do with decide on a sensible default anyway?
Regards
Oliver
next reply other threads:[~2018-12-13 10:13 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-13 10:13 Oliver Neukum [this message]
-- strict thread matches above, loose matches on Subject: below --
2018-12-18 8:55 cdc-acm: fix abnormal DATA RX issue for Mediatek Preloader Johan Hovold
2018-12-17 5:50 macpaul.lin
2018-12-14 11:07 Johan Hovold
2018-12-14 2:00 macpaul.lin
2018-12-13 10:18 Johan Hovold
2018-12-13 9:43 Johan Hovold
2018-12-13 9:23 Oliver Neukum
2018-12-13 3:27 macpaul.lin
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=1544696034.11160.5.camel@suse.com \
--to=oneukum@suse.com \
--cc=gregkh@linuxfoundation.org \
--cc=johan@kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=macpaul.lin@mediatek.com \
--cc=wsd_upstream@mediatek.com \
/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).