Date: Tue, 12 Jan 2016 22:04:34 -0800 From: Mark Johnston <markjdb@gmail.com> To: Hans Petter Selasky <hps@selasky.org> Cc: freebsd-usb@freebsd.org Subject: Re: CP2102 UART adapter not attaching Message-ID: <20160113060434.GA2434@raichu> In-Reply-To: <56936A9D.2060209@selasky.org> References: <20160110040732.GA2606@raichu> <56936A9D.2060209@selasky.org>
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On Mon, Jan 11, 2016 at 09:41:01AM +0100, Hans Petter Selasky wrote: > On 01/10/16 05:07, Mark Johnston wrote: > > Hi, > > > > 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: <Unknown> 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? > > Hi, > > What does "usbconfig" say about your USB controllers? > > Did you try to connect through an external USB HUB? No, I don't have one handy. usbconfig shows: ugen0.1: <XHCI root HUB 0x8086> at usbus0, cfg=0 md=HOST spd=SUPER (5.0Gbps) pwr=SAVE (0mA) ugen1.1: <EHCI root HUB Intel> at usbus1, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=SAVE (0mA) ugen2.1: <EHCI root HUB Intel> at usbus2, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=SAVE (0mA) > > The log you show basically shows that the device is refusing to enumerate. > > You can try adding "options USB_REQ_DEBUG" to GENERIC. Then you'll have > some more sysctl knobs under hw.usb which allows you to try to figure > out timing related issues. I tried increasing several hw.usb.timings sysctl values but haven't had any luck so far. > > Which version of FreeBSD are you using? CURRENT at r293678 with some local modifications. No changes to the USB stack though.help
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