sending data to usb port

[Jack Craig]

how about

you plug in your USB widget & identify the device node (/dev/sdc1, for
example).

say your src data is in /tmp/junk

# dd if=/tmp/junk of=/devsdc1    [any other args you might want to shape
the write and some error handing ( i think, it was a long time ago...)]

man dd    {for more options}

hth,....


On Thu, Feb 4, 2016 at 7:45 AM, Hiisi <hiisi at fedoraproject.org> wrote:

> Hi!
> Imagine I have some device connected to USB port. Is it possible to send
> some code directly to that port?
> Here's what I'm trying:
> # echo "0" > /dev/bus/usb/004/010
> -bash: echo: write error: Invalid argument
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