From: Philipp Hachtmann <hachti@hachti.de>
To: jhovold@gmail.com, gregkh@linuxfoundation.org,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] usb/ftdi_sio: Add support for setting CBUS pins on FT232H
Date: Sun, 01 Jun 2014 02:14:27 +0200 [thread overview]
Message-ID: <538A7063.8010205@hachti.de> (raw)
In-Reply-To: <20140601000059.27360.qmail@stuge.se>
On 01.06.2014 02:00, Peter Stuge wrote:
> Philipp Hachtmann wrote:
>> This patch adds a sysfs attribute "cbus" which allows to set the
>> four CBUS pins on the FT232H.
>
> I think this should be implemented with the gpio subsystem instead.
The GPIO subsystem seems to be made for GPIO pins connected directly to the
computer. The Beaglebone with its AM335x SoC seems to be a good example of
a computer with many GPIOs in the sense of the GPIO subsystem.
And the GPIO pins have fixed unique numbers. No, I don't think that the GPIO
subsystem has anything to do with the additional pins on some USB device.
Please correct me if I'm completely wrong.
Kind regards,
Philipp
next prev parent reply other threads:[~2014-06-01 0:14 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-31 23:31 [PATCH 0/2] Add synchronous FIFO and CBUS support for FT232H Philipp Hachtmann
2014-05-31 23:31 ` [PATCH 1/2] usb/ftdi_sio: Add synchronous FIFO mode " Philipp Hachtmann
2014-05-31 23:31 ` [PATCH 2/2] usb/ftdi_sio: Add support for setting CBUS pins on FT232H Philipp Hachtmann
2014-06-01 0:00 ` Peter Stuge
2014-06-01 0:14 ` Philipp Hachtmann [this message]
2014-06-01 2:31 ` Greg KH
2014-06-02 0:57 ` Philipp Hachtmann
2014-06-02 1:38 ` Greg KH
2014-06-02 1:48 ` Philipp Hachtmann
2014-06-01 0:04 ` Philipp Hachtmann
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=538A7063.8010205@hachti.de \
--to=hachti@hachti.de \
--cc=gregkh@linuxfoundation.org \
--cc=jhovold@gmail.com \
--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