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Subject: Re: [PATCH 1/2] Bluetooth: Add reset_resume function
From: Oliver Neukum <oneukum@suse.com>
To: Laura Abbott <labbott@fedoraproject.org>
Cc: Marcel Holtmann <marcel@holtmann.org>, Ming Lei
 <ming.lei@canonical.com>,  "David S. Miller" <davem@davemloft.net>, Johan
 Hedberg <johan.hedberg@gmail.com>, "Rafael J. Wysocki"
 <rafael.j.wysocki@intel.com>, "Gustavo F. Padovan" <gustavo@padovan.org>,
 Alan Stern <stern@rowland.harvard.edu>, Takashi Iwai <tiwai@suse.de>,
 linux-bluetooth@vger.kernel.org,  Linux Kernel Mailing List
 <linux-kernel@vger.kernel.org>, USB list <linux-usb@vger.kernel.org>,
 netdev <netdev@vger.kernel.org>
Date: Tue, 02 Jun 2015 09:47:50 +0200
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References: <1433207682-15064-1-git-send-email-labbott@fedoraproject.org>
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On Mon, 2015-06-01 at 18:14 -0700, Laura Abbott wrote:
> Bluetooth devices off of some buses such as USB may lose power across
> suspend/resume. When this happens, drivers may need to have the setup
> function called again and behave differently than a cold power on.

Yes, but what is the point? We use reset_resume() to retain
some features of a device across a loss of power.
If power is lost, all settings are gone and all connections
are broken. So what is the difference compared to a plug out/in
cycle?

	Regards
		Oliver