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From: Felipe Balbi <balbi@ti.com>
To: Eduard Gavin <egavin@iseebcn.com>
Cc: "Agustí Fontquerni" <af@iseebcn.com>,
	"Tony Lindgren" <tony@atomide.com>,
	"Enric Balletbo Serra" <eballetbo@gmail.com>,
	"linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>,
	linux-omap@vger.kernel.org, balbi@ti.com
Subject: Re: USB OTG doesn't work in HOST mode on OMAP3 processor on 3.18-rc5
Date: Tue, 23 Dec 2014 12:41:26 -0600	[thread overview]
Message-ID: <20141223184126.GJ9147@saruman> (raw)
In-Reply-To: <CAPjucKaEodpFtv533az+axecjsOahDsWV=V-M6sX84Z27KovsQ@mail.gmail.com>

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Hi,

(no top-posting)

On Fri, Dec 19, 2014 at 12:16:04PM +0100, Eduard Gavin wrote:
> Hi Everybody,
> 
> After several test with IGEPv2 board (OMAP3) and linux kernel 3.17 and
> 3.18, the OTG works but, (from my point of view) with an weird
> behaviour.
> 
> The OTG like a Host only is activated after load a gadget driver, I
> mean that, If I plug a USB memory dongle in the OTG port before load a
> Gadget driver like "g_ether" the dongle is not recognized. After load
> g_ether driver, the usb dongle is recognized without problems.
> I miss something in the configuration?
> It this the normal behaviour?

it's normal. If you configured your kernel for OTG/dual-role, you must
have both roles ready to go.

that should be considered common sense.

cheers

-- 
balbi

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  reply	other threads:[~2014-12-23 18:41 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CAJt7siu_JiSe3CfM2=0UZLQjRevdLuX+=UL566fiW6XefTTWGA@mail.gmail.com>
     [not found] ` <CAJt7siu_JiSe3CfM2=0UZLQjRevdLuX+=UL566fiW6XefTTWGA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-12-19 11:16   ` USB OTG doesn't work in HOST mode on OMAP3 processor on 3.18-rc5 Eduard Gavin
2014-12-23 18:41     ` Felipe Balbi [this message]
2014-11-17 15:13 Enric Balletbo Serra
2014-11-17 18:04 ` Tony Lindgren
2014-11-18  9:02   ` Enric Balletbo Serra
     [not found]     ` <CAFqH_52LV8k6OyH04dUmhzZChnHrtJR23qu1ewhU49iOVT1Mwg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-11-18 10:42       ` Enric Balletbo Serra
2014-11-18 15:42     ` Tony Lindgren
     [not found]       ` <20141118154204.GI7046-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2014-11-19 11:12         ` Enric Balletbo Serra
2014-11-19 17:53           ` Tony Lindgren
     [not found]             ` <20141119175348.GK7046-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2014-11-28 10:35               ` Yegor Yefremov
2014-11-29 15:35                 ` Felipe Balbi
2014-12-01  7:57                   ` Yegor Yefremov
     [not found]                     ` <CAGm1_ku4UYL0DX9DuSJWn9-QKhcq+mUKyVTA433F6XbRe2FnHg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-12-01 14:35                       ` Felipe Balbi

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