mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: Luotao Fu <l.fu@pengutronix.de>
To: Uwe Bonnes <bon@elektron.ikp.physik.tu-darmstadt.de>
Cc: Luotao Fu <l.fu@pengutronix.de>,
	gregkh@suse.de, linux-usb@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] USB: serial: add FTDI FT4232H ID
Date: Tue, 7 Apr 2009 11:03:53 +0200	[thread overview]
Message-ID: <20090407090353.GA12669@pengutronix.de> (raw)
In-Reply-To: <18907.3900.117808.251116@elektron.ikp.physik.tu-darmstadt.de>

[-- Attachment #1: Type: text/plain, Size: 1286 bytes --]

On Tue, Apr 07, 2009 at 10:30:52AM +0200, Uwe Bonnes wrote:
> >>>>> "Luotao" == Luotao Fu <l.fu@pengutronix.de> writes:
> 
>     Luotao> add the ID of FT4232H Hi-Speed quad channel serial converter.
> 
> This probably isn't enough to make the devices work.
> 
> The FT2232H and FT4432H are High Speed devices with defaul buffer sizes of
> 512 bytes. A recieve buffer contains two status bytes and then up to 510
> bytes of data against 62 bytes on the old devices.

Shame on me. I did only check whether the device with its four channels are
registered. Since the chip is built-in on our board and I still need some
additional libraries to check the devices connected to it. I haven't done any
function tests still. Will keep an eye on this. Sounds that it could be a little
hairy then. Afais the PID 6001 is e.g. shared by common/high speed devices. I
didn't grab deeper in the ftdi code, probably it'll be some way to work around
this.

cheers
Luotao Fu
-- 
Pengutronix e.K.                           | Dipl.-Ing. Luotao Fu        |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 197 bytes --]

  reply	other threads:[~2009-04-07  9:04 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-04-07  7:49 Luotao Fu
2009-04-07  8:30 ` Uwe Bonnes
2009-04-07  9:03   ` Luotao Fu [this message]
2009-04-07  9:45     ` Uwe Bonnes

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=20090407090353.GA12669@pengutronix.de \
    --to=l.fu@pengutronix.de \
    --cc=bon@elektron.ikp.physik.tu-darmstadt.de \
    --cc=gregkh@suse.de \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-usb@vger.kernel.org \
    /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

all inboxes | Powered by JetHome®