From owner-freebsd-usb@FreeBSD.ORG Wed Jul 20 12:59:11 2011 Return-Path: Delivered-To: freebsd-usb@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id BDABC1065678 for ; Wed, 20 Jul 2011 12:59:11 +0000 (UTC) (envelope-from peerst@gmail.com) Received: from mail-vw0-f54.google.com (mail-vw0-f54.google.com [209.85.212.54]) by mx1.freebsd.org (Postfix) with ESMTP id 7E61B8FC14 for ; Wed, 20 Jul 2011 12:59:11 +0000 (UTC) Received: by vws18 with SMTP id 18so179501vws.13 for ; Wed, 20 Jul 2011 05:59:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; bh=tIPD2KE5ib6zWvRF+xOmNcVCGu92kKbM4KhX16/R4YQ=; b=ffPTKMPnLde+knK/dM/zAxmZbxptzLIr45HodnCCLTSu1oVi2rMBa5N1YD1R6hE7bh FioHX6hxCmBluBh9j1xRBuh5MSisl4YLE6ewIyV1u5SthxTTAo6Q2gZ0O/c0zcJwNCaT bHUPisvX05pIOQXAoBKMJfMAH/NMAhFH/c6Sc= MIME-Version: 1.0 Received: by 10.52.29.178 with SMTP id l18mr5651863vdh.90.1311165037996; Wed, 20 Jul 2011 05:30:37 -0700 (PDT) Received: by 10.52.188.102 with HTTP; Wed, 20 Jul 2011 05:30:37 -0700 (PDT) Date: Wed, 20 Jul 2011 14:30:37 +0200 Message-ID: From: Peer Stritzinger To: freebsd-usb Content-Type: text/plain; charset=ISO-8859-1 Subject: Powercycling USB device on hub X-BeenThere: freebsd-usb@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: FreeBSD support for USB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 20 Jul 2011 12:59:11 -0000 Hi, is ist possible to power-cycle the HUB port of a USB device by programmatic means (via script or libusb or some ioctl)? It would be perfect if I could power-off/on just a certain device but it would also help to power-cycle all devices on a HUB. Cheers, Peer Stritzinger