Re: USB "insertion" for permanently-connected devices

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27.06.20, 14:55 CEST, Patrick O'Callaghan:

> On Sat, 2020-06-27 at 14:15 +0200, Markus Schönhaber wrote:
>> 26.06.20, 22:33 CEST, Patrick O'Callaghan:
>>
>>> This works too, but unfortunately also removes the /sys/block/sdd
>>> files, meaning I can't turn the thing on again. However, if I
>>> physically switch it on and off, it reappears, IOW it causes a USB
>>> "insertion" event.
>>>
>>> Is there a way to cause an insertion event without physically doing
>>> anything to the dock?
>>
>> eject -t /dev/sdd
>>
>> might be worth a try. At least this (device node adapted, of course)
>> works for me with USB thumb drives which I "safely removed" using the
>> GUI. If the udiskctl command you use internally does something similar
>> to the GUI function, eject -t might also work for you.
> 
> The problem is that the device node (/dev/sdd) is removed by the
> udisksctl power-off command, so this doesn't work.

Did you try it?

Doing "safely remove" (for example in Dolphin) also removes the
corresponding device node.
eject -t <the device node not present any more>
for me, removes the necessity to pull an re-insert the thumb drive to
re-create the device node and to be able to access it again. That's the
whole point in issuing eject -t.

-- 
Regards
  mks
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