From owner-freebsd-usb@freebsd.org Fri Jan 15 14:26:20 2016 Return-Path: Delivered-To: freebsd-usb@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 81DD8A8425B for ; Fri, 15 Jan 2016 14:26:20 +0000 (UTC) (envelope-from wblock@wonkity.com) Received: from wonkity.com (wonkity.com [67.158.26.137]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "wonkity.com", Issuer "wonkity.com" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 5174610D3 for ; Fri, 15 Jan 2016 14:26:20 +0000 (UTC) (envelope-from wblock@wonkity.com) Received: from wonkity.com (localhost [127.0.0.1]) by wonkity.com (8.15.2/8.15.2) with ESMTPS id u0FEQIN8045443 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Fri, 15 Jan 2016 07:26:18 -0700 (MST) (envelope-from wblock@wonkity.com) Received: from localhost (wblock@localhost) by wonkity.com (8.15.2/8.15.2/Submit) with ESMTP id u0FEQI4v045440; Fri, 15 Jan 2016 07:26:18 -0700 (MST) (envelope-from wblock@wonkity.com) Date: Fri, 15 Jan 2016 07:26:18 -0700 (MST) From: Warren Block To: Mark Johnston cc: freebsd-usb@freebsd.org Subject: Re: CP2102 UART adapter not attaching In-Reply-To: <20160110040732.GA2606@raichu> Message-ID: References: <20160110040732.GA2606@raichu> User-Agent: Alpine 2.20 (BSF 67 2015-01-07) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.4.3 (wonkity.com [127.0.0.1]); Fri, 15 Jan 2016 07:26:18 -0700 (MST) X-BeenThere: freebsd-usb@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: FreeBSD support for USB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 15 Jan 2016 14:26:20 -0000 On Sat, 9 Jan 2016, Mark Johnston wrote: > I have the module listed here: > http://www.amazon.com/KEDSUM%C2%AE-CP2102-Module-Download-Converter/dp/B009T2ZR6W > > Under Windows 8 it works perfectly, but on FreeBSD-CURRENT I get: > > usb_alloc_device: set address 3 failed (USB_ERR_STALLED, ignored) > usbd_setup_device_desc: getting device descriptor at addr 3 failed, USB_ERR_STALLED > usbd_req_re_enumerate: addr=3, set address failed! (USB_ERR_STALLED, ignored) > usbd_setup_device_desc: getting device descriptor at addr 3 failed, USB_ERR_STALLED > usbd_req_re_enumerate: addr=3, set address failed! (USB_ERR_STALLED, ignored) > usbd_setup_device_desc: getting device descriptor at addr 3 failed, USB_ERR_STALLED > usbd_req_re_enumerate: addr=3, set address failed! (USB_ERR_STALLED, ignored) > usbd_setup_device_desc: getting device descriptor at addr 3 failed, USB_ERR_STALLED > usbd_req_re_enumerate: addr=3, set address failed! (USB_ERR_STALLED, ignored) > usbd_setup_device_desc: getting device descriptor at addr 3 failed, USB_ERR_STALLED > ugen1.3: at usbus1 (disconnected) > uhub_reattach_port: could not allocate new device > > It looks like this device should be handled by uslcom(4), but it looks > like we can't even get the device descriptor. How can I go about > debugging this? As a data point, a CP2102 is built into the NodeMCU microcontroller board. That implementation works with my FreeBSD 10.2-STABLE system: On attach: devd: Executing 'kldload -n uslcom' kernel: uslcom0: on usbus0 On detach: kernel: ugen0.4: at usbus0 (disconnected) kernel: uslcom0: at uhub5, port 2, addr 3 (disconnected)