[Bug 1063172] New: brltty hijacks /dev/ttyUSB0 for CP2102 USB to UART Bridge Controllers
http://bugzilla.opensuse.org/show_bug.cgi?id=1063172 Bug ID: 1063172 Summary: brltty hijacks /dev/ttyUSB0 for CP2102 USB to UART Bridge Controllers Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: x86-64 OS: openSUSE Factory Status: NEW Severity: Normal Priority: P5 - None Component: Basesystem Assignee: bnc-team-screening@forge.provo.novell.com Reporter: gorgoglione@gmail.com QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- I'm doing embedded software development and my target boards use CP2102 USB to UART bridge controllers to provide terminal consoles. brltty is installed by default, is triggered automatically by udev and hijacks /dev/ttyUSB0 when I plug the cable. Is there any way to prevent this from happening apart uninstalling brltty? Best regards, Giuseppe. -- You are receiving this mail because: You are on the CC list for the bug.
http://bugzilla.opensuse.org/show_bug.cgi?id=1063172 http://bugzilla.opensuse.org/show_bug.cgi?id=1063172#c2 --- Comment #2 from Giuseppe Gorgoglione <gorgoglione@gmail.com> --- Hello Michael, sure. This is the relevant output of lsusb: Bus 001 Device 005: ID 10c4:ea60 Cygnal Integrated Products, Inc. CP2102/CP2109 UART Bridge Controller [CP210x family] This, instead is coming from kernel logs (whre you can see brltty hijacking ttyUSB0): [19645.797064] usb 1-8: new full-speed USB device number 5 using xhci_hcd [19645.938788] usb 1-8: New USB device found, idVendor=10c4, idProduct=ea60 [19645.938794] usb 1-8: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [19645.938797] usb 1-8: Product: CP2102 USB to UART Bridge Controller [19645.938800] usb 1-8: Manufacturer: Silicon Labs [19645.938802] usb 1-8: SerialNumber: 0001 [19645.958688] usbcore: registered new interface driver usbserial [19645.958706] usbcore: registered new interface driver usbserial_generic [19645.958723] usbserial: USB Serial support registered for generic [19645.959709] usbcore: registered new interface driver cp210x [19645.959730] usbserial: USB Serial support registered for cp210x [19645.959758] cp210x 1-8:1.0: cp210x converter detected [19645.961414] usb 1-8: cp210x converter now attached to ttyUSB0 [19646.174548] usb 1-8: usbfs: interface 0 claimed by cp210x while 'brltty' sets config #1 [19646.174995] cp210x ttyUSB0: cp210x converter now disconnected from ttyUSB0 [19646.175015] cp210x 1-8:1.0: device disconnected [19650.241001] input: BRLTTY 5.5 Linux Screen Driver Keyboard as /devices/virtual/input/input19 Best regards, Giuseppe. -- You are receiving this mail because: You are on the CC list for the bug.
http://bugzilla.opensuse.org/show_bug.cgi?id=1063172 http://bugzilla.opensuse.org/show_bug.cgi?id=1063172#c8 Simon Lees <simonf.lees@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |simonf.lees@suse.com --- Comment #8 from Simon Lees <simonf.lees@suse.com> --- I had the same issue, my devices details are listed below but ill also just uninstall brltty [3901548.072026] usb 3-2: new full-speed USB device number 9 using xhci_hcd [3901548.234960] usb 3-2: New USB device found, idVendor=10c4, idProduct=ea60 [3901548.234962] usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [3901548.234963] usb 3-2: Product: CP2102 USB to UART Bridge Controller [3901548.234964] usb 3-2: Manufacturer: Silicon Labs [3901548.234965] usb 3-2: SerialNumber: 0001 [3901548.242996] cp210x 3-2:1.0: cp210x converter detected -- You are receiving this mail because: You are on the CC list for the bug.
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