From: marex@denx.de (Marek Vasut)
To: linux-arm-kernel@lists.infradead.org
Subject: Chipidea usb otg support for IMX/MXS (device functionality)
Date: Sun, 7 Jul 2013 03:10:00 +0200 [thread overview]
Message-ID: <201307070310.00973.marex@denx.de> (raw)
In-Reply-To: <F281D0F91ED19E4D8E63A7504E8A649803EFF551@039-SN2MPN1-023.039d.mgd.msft.net>
Hi Peter,
> > Where can I measure this?
> >
> > > Two possible reasons:
> > >
> > > 1. You have not gpio control for vbus toggle when role switches.
> >
> > This works well.
> >
> > > 2. Your hardware has some problems that the vbus can't lower than 0.8v.
> >
> > How can I check that?
>
> Just measure the voltage of your otg vbus pin.
It's 2.5 volt for me. What am I supposed to observe happening there?
Best regards,
Marek Vasut
next prev parent reply other threads:[~2013-07-07 1:10 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <51A5A808.2070803@digi.com>
[not found] ` <F281D0F91ED19E4D8E63A7504E8A649803E8A3F3@039-SN2MPN1-021.039d.mgd.msft.net>
2013-05-29 7:50 ` Chipidea usb otg support for IMX/MXS (device functionality) maxime.ripard at free-electrons.com
2013-05-29 8:07 ` Chen Peter-B29397
2013-05-29 10:13 ` Michael Grzeschik
2013-05-29 12:19 ` maxime.ripard at free-electrons.com
2013-05-29 12:41 ` Michael Grzeschik
2013-05-30 13:53 ` maxime.ripard at free-electrons.com
2013-06-21 11:26 ` Marek Vasut
2013-06-21 12:22 ` Michael Grzeschik
2013-06-21 12:56 ` Marek Vasut
2013-06-22 2:33 ` Marek Vasut
2013-06-22 8:28 ` Chen Peter-B29397
2013-06-22 13:29 ` Marek Vasut
2013-06-24 1:37 ` Chen Peter-B29397
2013-06-24 7:08 ` Shawn Guo
2013-06-24 13:51 ` Marek Vasut
2013-06-25 1:48 ` Chen Peter-B29397
2013-06-25 18:40 ` Marek Vasut
2013-06-27 13:49 ` Marek Vasut
2013-06-28 6:48 ` Chen Peter-B29397
2013-06-28 9:42 ` Marek Vasut
2013-06-28 10:46 ` Chen Peter-B29397
2013-06-28 11:56 ` Marek Vasut
2013-06-28 13:04 ` Chen Peter-B29397
2013-06-28 13:11 ` Fabio Estevam
2013-07-01 2:06 ` Chen Peter-B29397
2013-07-07 1:10 ` Marek Vasut [this message]
2013-07-08 1:21 ` Chen Peter-B29397
2013-07-08 20:56 ` Marek Vasut
2013-07-09 1:05 ` Chen Peter-B29397
2013-07-09 10:38 ` Marek Vasut
2013-06-25 14:23 ` Fabio Estevam
2013-06-25 15:39 ` Fabio Estevam
2013-06-25 18:42 ` Marek Vasut
2013-07-09 15:07 ` Marek Vasut
2013-05-30 16:17 ` Hector Palacios
2013-06-07 9:37 ` maxime.ripard at free-electrons.com
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