From: Felipe Balbi <balbi@ti.com>
To: NeilBrown <neilb@suse.de>
Cc: Samuel Ortiz <sameo@linux.intel.com>, Felipe Balbi <balbi@ti.com>,
Grazvydas Ignotas <notasas@gmail.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org,
linux-omap@vger.kernel.org
Subject: Re: [PATCH 6/6] twl4030-usb: Don't report EVENT_ID when there is VBUS.
Date: Wed, 25 Apr 2012 11:05:27 +0300 [thread overview]
Message-ID: <20120425080526.GA3777@arwen.pp.htv.fi> (raw)
In-Reply-To: <20120425073311.20124.58619.stgit@notabene.brown>
[-- Attachment #1: Type: text/plain, Size: 531 bytes --]
Hi,
On Wed, Apr 25, 2012 at 05:33:11PM +1000, NeilBrown wrote:
> Some USB chargers tie the ID pin low via various resistors.
> So they can cause VBUS to be high and ID to be low.
>
> The 'A' end of an OTG cable never receives VBUS, it only ever generates it.
this isn't entirely true. Have you considered Accessory Charger
Adapters ?
> So if we see VBUS and are not generating it, this must be a charger,
> not the A end of an OTG cable, so in that case, ignore the fact that
> ID is low.
wrong.
--
balbi
[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 836 bytes --]
next prev parent reply other threads:[~2012-04-25 8:05 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-25 7:33 [PATCH 0/6] twl4030: Various fixes for charing-from-USB NeilBrown
2012-04-25 7:33 ` [PATCH 1/6] twl4030_charger: Fix some typos NeilBrown
2012-04-25 7:33 ` [PATCH 2/6] twl4030_charger: add backup-battery charging NeilBrown
2012-04-25 7:33 ` [PATCH 3/6] twl4030_charger: allow charging whenever VBUS is present NeilBrown
[not found] ` <20120425073310.20124.15112.stgit-wvvUuzkyo1EYVZTmpyfIwg@public.gmane.org>
2012-04-25 11:33 ` Grazvydas Ignotas
2012-04-29 23:34 ` NeilBrown
2012-04-25 7:33 ` [PATCH 4/6] twl4030_charger: Allow charger to control the regulator that feeds it NeilBrown
2012-04-30 10:14 ` Tero Kristo
2012-05-01 1:01 ` NeilBrown
2012-05-09 16:06 ` Samuel Ortiz
2012-04-25 7:33 ` [PATCH 6/6] twl4030-usb: Don't report EVENT_ID when there is VBUS NeilBrown
2012-04-25 8:05 ` Felipe Balbi [this message]
2012-04-25 10:29 ` NeilBrown
2012-04-25 11:44 ` Grazvydas Ignotas
2012-04-25 7:33 ` [PATCH 5/6] twl4030-usb: Don't power down phy when it is in-use by charger NeilBrown
2012-04-25 11:31 ` [PATCH 0/6] twl4030: Various fixes for charing-from-USB Grazvydas Ignotas
[not found] ` <CANOLnOOQDxu-P=yTN6159XJANq-_FSCtZ4rBt69NSCPjLz1Rjw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-04-29 23:30 ` NeilBrown
[not found] ` <20120430093002.472dfdde-wvvUuzkyo1EYVZTmpyfIwg@public.gmane.org>
2012-05-05 10:49 ` Anton Vorontsov
2012-05-05 10:52 ` Anton Vorontsov
2012-05-10 1:24 ` Peter Chen
2012-05-10 2:37 ` NeilBrown
2012-05-10 6:46 ` Chen Peter-B29397
2012-05-10 14:45 ` Alan Stern
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=20120425080526.GA3777@arwen.pp.htv.fi \
--to=balbi@ti.com \
--cc=gregkh@linuxfoundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-omap@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=neilb@suse.de \
--cc=notasas@gmail.com \
--cc=sameo@linux.intel.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