Date: Tue, 12 Jan 2016 22:17:22 -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: <20160113061722.GB2434@raichu> In-Reply-To: <5695EBE0.8020501@selasky.org> References: <20160110040732.GA2606@raichu> <56936A9D.2060209@selasky.org> <20160113060434.GA2434@raichu> <5695EBE0.8020501@selasky.org>
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On Wed, Jan 13, 2016 at 07:17:04AM +0100, Hans Petter Selasky wrote: > 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! xhci0@pci0:0:20:0: class=0x0c0330 card=0x84ca1043 chip=0x1e318086 rev=0x04 hdr=0x00 vendor = 'Intel Corporation' device = '7 Series/C210 Series Chipset Family USB xHCI Host Controller' class = serial bus subclass = USB I'm plugging the module into the first EHCI controller though - it's a USB 2.0 device. > > >> > >> 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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