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gen7_troubleshooting [2016/06/07 19:16] – Add [Resource Busy] Traumfluggen7_troubleshooting [2018/05/27 16:10] (current) – external edit (unknown user)
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 /dev/ttyACM0 is a serial device and as such, Modem Manager assumes it to be a connected modem and tries to establish a network connection as soon as it appears, occupying the device. /dev/ttyACM0 is a serial device and as such, Modem Manager assumes it to be a connected modem and tries to establish a network connection as soon as it appears, occupying the device.
  
-==== Solution ====+==== First Solution ====
  
-**First** and most simple solution is to simply wait for a minute. Modem Manager gives up after a while, freeing the device.+Most simple solution is to simply wait for a minute. Modem Manager gives up after a while, freeing the device.
  
-**Second** solution is to uninstall Modem Manager:+==== Second Solution ==== 
 + 
 +Also a solution is to uninstall Modem Manager:
  
   sudo apt-get purge modemmanager   sudo apt-get purge modemmanager
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 As no other package depends on Modem Manager, this works flawlessly. You loose the ability to make a network connection via a modem, of course. As no other package depends on Modem Manager, this works flawlessly. You loose the ability to make a network connection via a modem, of course.
  
-**Third** solution is to instruct the system to try on all serial devices, but not the Gen7. This is a bit more complicated. Googling around I found several sets of instructions, only one of them look reasonable:+==== Third Solution ==== 
 + 
 +The most sophisticated way is to instruct Modem Manager to try on all serial devices, but not on the Gen7. This is a bit more complicated. Googling around I found several sets of instructions, only one of them looks reasonable:
  
 [[http://www.at91.com/linux4sam/bin/view/Linux4SAM/SoftwareTools#Device_or_resource_busy_dev_ttyA|AT91]] writes: [[http://www.at91.com/linux4sam/bin/view/Linux4SAM/SoftwareTools#Device_or_resource_busy_dev_ttyA|AT91]] writes:
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   udev start/running, process 9299   udev start/running, process 9299
  
-**RepRap DIY note**: doing it this way will cause a conflict next time the //udev// package is upgraded. As //udev// allows to override distribution files it'd probably be better to copy that file to ///etc/udev/rules.d//, which causes the one in ///lib/udev/rules.d// to be ignored. Then edit the copy.+**RepRap DIY note**: this wasn't tested and the vendorIDs above need to match the Gen7. Also, doing it this way will cause a conflict next time the //udev// package is upgraded. As //udev// allows to override distribution files it'd probably be better to copy that file to ///etc/udev/rules.d//, which causes the one in ///lib/udev/rules.d// to be ignored. Then to edit the copy.
gen7_troubleshooting.1465319811.txt.gz · Last modified: 2018/05/27 16:10 (external edit)