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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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LEARN ABOUT FREEBSD
usb_template
USB_TEMPLATE(4) BSD Kernel Interfaces Manual USB_TEMPLATE(4) NAME
usb_template -- USB templates SYNOPSIS
To compile this module into the kernel, place the following line in your kernel configuration file: device usb_template To load the module at boot time, place the following line in loader.conf(5): usb_template_load="YES" DESCRIPTION
The usb_template module implements various USB templates that are needed when programming an USB device side driver. A USB template consists of an USB device descriptor, one or more USB configuration descriptors, one or more USB interface descriptors, one or more USB endpoint descriptors, USB strings and additional USB descriptors. The USB template module currently has templates for USB Mass Storage, USB CDC Eth- ernet and Message Transfer Protocol. USB templates are currently selected using the "hw.usb.template" sysctl. The "hw.usb.template" value can be changed at any time, but will not have any effect until the USB device has been re-enumerated. SEE ALSO
usb(4) STANDARDS
The usb_template module complies to the USB 1.0, 2.0 and 3.0 standard. HISTORY
The usb_template module was written by Hans Petter Selasky <hselasky@FreeBSD.org>. BSD
March 18, 2014 BSD