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From: Mark Brown <broonie@kernel.org>
To: Mark Rutland <mark.rutland@arm.com>
Cc: Olof Johansson <olof@lixom.net>,
	Alan Stern <stern@rowland.harvard.edu>,
	"rob.herring@calxeda.com" <rob.herring@calxeda.com>,
	Pawel Moll <Pawel.Moll@arm.com>,
	Stephen Warren <swarren@wwwdotorg.org>,
	Ian Campbell <ian.campbell@citrix.com>,
	Felipe Balbi <balbi@ti.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"grant.likely@linaro.org" <grant.likely@linaro.org>,
	"devicetree@kernel.org" <devicetree@kernel.org>,
	"linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: Non-enumerable devices on USB and other enumerable buses
Date: Mon, 12 Aug 2013 12:32:26 +0100	[thread overview]
Message-ID: <20130812113226.GV6427@sirena.org.uk> (raw)
In-Reply-To: <20130812110714.GA6616@e106331-lin.cambridge.arm.com>

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On Mon, Aug 12, 2013 at 12:07:14PM +0100, Mark Rutland wrote:

> As I understand it, the wifi chip on the Snow Chromebook has a similar
> issue -- it hangs off of a probeable SDIO bus, but needs a regulator
> poked for it to turn on and become probeable (see
> exynos_wifi_bt_set_power in [1]).

Yes, that's another example - this stuff is really common in practical
systems, especially the power control for radios since that's how rfkill
tends to end up being implemented.

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  reply	other threads:[~2013-08-12 11:32 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-08-11 19:08 Non-enumerable devices on USB and other enumerable buses Mark Brown
2013-08-11 22:08 ` Grant Likely
2013-08-12 14:41   ` Mark Brown
2013-08-12  1:53 ` Alan Stern
2013-08-12  9:51   ` Mark Brown
2013-08-12 11:07     ` Mark Rutland
2013-08-12 11:32       ` Mark Brown [this message]
2013-08-12 18:08       ` Stephen Warren
2013-08-12 20:38         ` Mark Brown
2013-08-12  2:02 ` Greg Kroah-Hartman
2013-08-12 11:23   ` Mark Brown
2013-08-12 20:50     ` Greg Kroah-Hartman
2013-08-12 21:40       ` Mark Brown
2013-08-13  1:04         ` Alan Stern
2013-08-14 11:38           ` Mark Brown
2013-08-14 14:27             ` Alan Stern
2013-08-14 15:39               ` Mark Brown
2013-08-14 16:14                 ` Alan Stern
2013-08-14 16:30                   ` Stephen Warren
2013-08-14 18:49                     ` Mark Brown
2013-08-14 17:30                   ` Mark Brown
2013-08-14 18:35                     ` Alan Stern
2013-08-14 18:46                       ` Mark Brown
2013-08-14 19:39                         ` Alan Stern
2013-08-14 20:16                           ` Paul Zimmerman
2013-08-14 23:59                             ` Mark Brown
2013-08-14 23:55                           ` Mark Brown
2013-08-15 14:42                             ` Alan Stern
2013-08-15 17:10                               ` Mark Brown
2013-08-15 17:55                                 ` Alan Stern
2013-08-15 19:32                                   ` Mark Brown
2013-08-15 20:42                                     ` Alan Stern
2013-08-15 22:54                                       ` Mark Brown
2013-08-16 14:42                                         ` Alan Stern
2013-08-16 18:39                                           ` Mark Brown
2013-08-16 19:27                                             ` Alan Stern
2013-08-16 20:00                                               ` Mark Brown
2013-08-16 20:39                                                 ` Alan Stern
2013-08-16 22:46                                                   ` Mark Brown
2013-08-17  1:29                                                     ` Alan Stern
2013-08-19 12:17                                                       ` Ming Lei
2013-08-19 16:01                                                         ` Mark Brown
2013-08-20 13:19                                                           ` Ming Lei
2013-08-20 15:02                                                             ` Mark Brown

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