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Shell Programming and Scripting
USB port events linstening
Post 302964768 by manuhexadec on Tuesday 19th of January 2016 03:18:03 AM
01-19-2016
USB port events linstening
Hi everybody! 
I am a complete newbie.
Is it possible to write a script (shell or python) to listen to usb port event and to notify me every time an usb storage key is plugged or ejected? I want it to echo the device to mount (eg. /dev/sdb).
I wrote an udev rule wich runs a script after usb plugging but I don't know how to get the right device interface(eg. /dev/sdb) attached to my usb device.
The second problem is, how to get the right device interface if I plugged two or more usb devices? I'm lost.
Please, help me.
I'm working on a raspberry pi (without monitor).
Thanks.
I am a complete newbie.
Is it possible to write a script (shell or python) to listen to usb port event and to notify me every time an usb storage key is plugged or ejected? I want it to echo the device to mount (eg. /dev/sdb).I wrote an udev rule wich runs a script after usb plugging but I don't know how to get the right device interface(eg. /dev/sdb) attached to my usb device.
The second problem is, how to get the right device interface if I plugged two or more usb devices? I'm lost.
Please, help me.I'm working on a raspberry pi (without monitor).
Thanks.
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ehci
EHCI(4) BSD Kernel Interfaces Manual EHCI(4) NAME
ehci -- USB Enhanced Host Controller driver SYNOPSIS
ehci* at cardbus? function ? ehci* at pci? dev ? function ? usb* at ehci? DESCRIPTION
The ehci driver provides support for the USB Enhanced Host Controller Interface, which is used by USB 2.0 controllers. EHCI controllers are peculiar in that they can only handle the USB 2.0 protocol. This means that they normally have one or more companion controllers (i.e., ohci(4) or uhci(4)) handling USB 1.x devices. Consequently each USB connector is electrically connected to two USB con- trollers. The handling of this is totally automatic, but can be noticed since USB 1.x and USB 2.0 devices plugged in to the same connector appear to connect to different USB busses. SEE ALSO
cardbus(4), ohci(4), pci(4), uhci(4), usb(4) HISTORY
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