Date: Wed, 13 Jan 2016 07:17:04 +0100 From: Hans Petter Selasky <hps@selasky.org> To: Mark Johnston <markjdb@gmail.com> Cc: freebsd-usb@freebsd.org Subject: Re: CP2102 UART adapter not attaching Message-ID: <5695EBE0.8020501@selasky.org> In-Reply-To: <20160113060434.GA2434@raichu> References: <20160110040732.GA2606@raichu> <56936A9D.2060209@selasky.org> <20160113060434.GA2434@raichu>
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On 01/13/16 07:04, Mark Johnston wrote: > 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) > Could you show what "pciconf -lv" says about xhci0. Sometimes you need to set a special routing register before some XHCI controllers work! >> >> 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. > --HPS
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