From: grimble@nomail.afraid.org   
      
   On 29/08/12 13:22, Whiskers wrote:   
   > On 2012-08-28, Grimble  wrote:   
   >> I've just commissioned a new machine that has several USB ports. One of   
   >> these has an adaptor connected, and I want to set its permissions in a   
   >> startup script. Unfortunately in three different starts, the address of   
   >> this adaptor has varied from   
   >> /dev/bus/usb/005/002 to   
   >> /dev/bus/usb/002/002   
   >> which makes it difficult to script.   
   >> Any idea why the address should change, and more importantly, can I do   
   >> anything to make it constant?   
   >> Grimble   
   >   
   > Can the "adaptor" be identified?  Or whatever gadget the adaptor is   
   > used for?  What do you see in your system log when you connect the   
   > gadget or power it up?   
   >   
   The device is a 1-wire DS2490-1. When I unplugged then re-plugged it,   
   the following were generated:   
   Aug 29 13:38:10 handel kernel: [157884.274602] usb 2-1: USB disconnect,   
   device number 2   
   Aug 29 13:38:14 handel kernel: [157889.036019] usb 2-1: new full speed   
   USB device number 4 using ohci_hcd   
   Aug 29 13:38:15 handel kernel: [157889.176845] usb 2-1: New USB device   
   found, idVendor=04fa, idProduct=2490   
   Aug 29 13:38:15 handel kernel: [157889.176850] usb 2-1: New USB device   
   strings: Mfr=0, Product=0, SerialNumber=0   
   Aug 29 13:38:15 handel mtp-probe: checking bus 2, device 4:   
   "/sys/devices/pci0000:00/0000:00:13.0/usb2/2-1"   
   Aug 29 13:38:15 handel mtp-probe: bus: 2, device: 4 was not an MTP device   
   Aug 29 13:38:15 handel mtp-probe: checking bus 2, device 4:   
   "/sys/devices/pci0000:00/0000:00:13.0/usb2/2-1"   
   Aug 29 13:38:15 handel mtp-probe: bus: 2, device: 4 was not an MTP device   
   Aug 29 13:38:16 handel kernel: [157890.733855] w1_master_driver w1 bus   
   master: Family 10 for 10.000801b5af34.5b is not registered.   
   Aug 29 13:38:18 handel kernel: [157892.277868] w1_master_driver w1 bus   
   master: Family 10 for 10.0008027cc3ce.98 is not registered.   
   Aug 29 13:38:19 handel kernel: [157893.821879] w1_master_driver w1 bus   
   master: Family 26 for 26.000000ce0eed.8c is not registered.   
   Aug 29 13:38:21 handel kernel: [157895.365893] w1_master_driver w1 bus   
   master: Family 26 for 26.000000bc80fd.11 is not registered.   
   Aug 29 13:38:22 handel kernel: [157896.909906] w1_master_driver w1 bus   
   master: Family 81 for 81.000000273d9e.96 is not registered.   
   Aug 29 13:38:24 handel kernel: [157898.453917] w1_master_driver w1 bus   
   master: Family 1d for 1d.0000000fdcfe.47 is not registered.   
      
   Does this tell you anything?   
      
   --   
   Grimble   
   Registered Linux User #450547   
   Running 4.6.5  on 2.6.39.4-5.1-desktop kernel.   
   Mandriva Linux release 2011.0 (Official) for x86_64   
      
   --- SoupGate-Win32 v1.05   
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