Date: Fri, 15 Jan 2016 07:26:18 -0700 (MST) From: Warren Block <wblock@wonkity.com> To: Mark Johnston <markjdb@gmail.com> Cc: freebsd-usb@freebsd.org Subject: Re: CP2102 UART adapter not attaching Message-ID: <alpine.BSF.2.20.1601150717300.37923@wonkity.com> In-Reply-To: <20160110040732.GA2606@raichu> References: <20160110040732.GA2606@raichu>
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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: <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? 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: <CP2102 USB to UART Bridge Controller> on usbus0 On detach: kernel: ugen0.4: <Silicon Labs> at usbus0 (disconnected) kernel: uslcom0: at uhub5, port 2, addr 3 (disconnected)
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