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The rule syntax above may work on some distributions, but did not work on mine (Raspbian). Since I never found a single document that explains all the ins and outs, I wrote my own, to be found here. This is what it boils down to. 1. find out what's on ttyUSB: dmesg | grep ttyUSB 2. list all attributes of the device and pick out a unique identifier set, ...


2

reading through multiple posts of this conversation http://article.gmane.org/gmane.linux.usb.general/61206 , it seems the conclusion is NO , we can't . the question in that conversation is exactly the same thing we want here . i come to this understanding . in usb the amount of current is determined by the device , not by the host . if we want to limit a ...


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You don't say what version of linux you want on there but yes you can use usb. Here is how to do it for centos http://wiki.centos.org/HowTos/InstallFromUSBkey


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Try exploring /sys/bus/usb/devices/.



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