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From: Tony Lindgren <tony@atomide.com>
To: joerg Reisenweber <joerg@openmoko.org>
Cc: "Pali Rohár" <pali.rohar@gmail.com>,
	"Felipe Balbi" <balbi@ti.com>,
	"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
	linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-omap@vger.kernel.org,
	"Ivaylo Dimitrov" <ivo.g.dimitrov.75@gmail.com>,
	"Sebastian Reichel" <sre@kernel.org>,
	"Aaro Koskinen" <aaro.koskinen@iki.fi>,
	"Pavel Machek" <pavel@ucw.cz>, "Nishanth Menon" <nm@ti.com>
Subject: Re: Nokia N900: musb is in wrong state after boot
Date: Thu, 21 Jan 2016 12:30:13 -0800	[thread overview]
Message-ID: <20160121203012.GN19432@atomide.com> (raw)
In-Reply-To: <8629381.KDSn8v3DtH@saturn>

* joerg Reisenweber <joerg@openmoko.org> [160121 11:35]:
> On Thu 21 January 2016 11:21:13 Tony Lindgren wrote:
> > Do you have some pointer
> > to the "certain resistor value on ID to GND" spec? Is it maybe part of
> > the carkit related parts of the USB spec?
> 
> ""Three additional ID pin states are defined[4] at the nominal resistance 
> values of 124 kΩ, 68 kΩ, and 36.5 kΩ, with respect to the ground pin. These 
> permit the device to work with USB Accessory Charger Adapters that allows the 
> OTG device to be attached to both a charger and another device simultaneously.
> [6]""
> https://en.wikipedia.org/wiki/USB_On-The-Go#OTG_micro_plugs

OK thanks. So it's the "accessory charger" part of the
battery charging specification 1.1.

Regards,

Tony

  reply	other threads:[~2016-01-21 20:30 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-09 15:16 Nokia N900: musb is in wrong state after boot Pali Rohár
2016-01-19 20:33 ` Tony Lindgren
2016-01-21  8:40   ` Pali Rohár
2016-01-21  9:57     ` Ivaylo Dimitrov
2016-01-21 10:23       ` Pali Rohár
2016-01-21 10:27         ` Ivaylo Dimitrov
2016-01-21 10:29     ` joerg Reisenweber
2016-01-21 17:41       ` Tony Lindgren
2016-01-21 18:44         ` joerg Reisenweber
2016-01-21 19:21           ` Tony Lindgren
2016-01-21 19:34             ` joerg Reisenweber
2016-01-21 20:30               ` Tony Lindgren [this message]
2016-01-26 14:34                 ` Pali Rohár
2016-01-26 17:26                   ` Tony Lindgren
2016-02-21 11:12                     ` Pali Rohár
2016-02-22  7:31                       ` Felipe Balbi
2016-02-22  8:34                         ` Pali Rohár
2016-02-22  8:54                           ` Felipe Balbi
2016-02-22  8:54                           ` Felipe Balbi
2016-02-22 15:36                             ` Bin Liu
2016-02-22 15:49                               ` Adam Ford
2016-01-23 12:57             ` Pali Rohár
2016-05-29 10:38               ` Pali Rohár
2016-06-07 12:50                 ` Pali Rohár
2016-06-08  9:53                   ` Tony Lindgren
2016-06-08 10:02                     ` Felipe Balbi
2016-06-08 10:19                       ` Pali Rohár
2016-06-08 10:20                       ` joerg Reisenweber
2016-06-08 12:04                       ` Sergei Shtylyov
2016-06-08 12:18                         ` joerg Reisenweber
2016-06-08 12:32                           ` Sergei Shtylyov
2016-06-09 21:09                       ` Bin Liu
2016-06-09 20:58                 ` Bin Liu
2016-06-09 21:25                   ` joerg Reisenweber
2016-06-10 15:08                     ` Bin Liu
2016-06-10 15:23                       ` joerg Reisenweber
2016-06-10 15:59                         ` Bin Liu
2016-06-10 16:15                           ` joerg Reisenweber
2016-06-10 17:04                             ` Nishanth Menon
2016-06-10 17:21                               ` joerg Reisenweber
2016-06-10 17:37                             ` Bin Liu

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