Forum Debian Users Gang

xomrk · 2014-07-12 18:17:00

Siema

jak w temacie potrzebuje wyłączyć całkowicie dopływ proądu dla wszystkich szyn usb na jakieś 10 sek poczym ponownie włączyć.
Szukałem różnych rozwiązań ale obecnie żadna nie działała .

Macie jakiś szybki sprawdzony sposób?

yossarian · 2014-07-12 18:26:02

Obecnie się nie da całkowicie wyłączyć zasilania.

The user interface for dynamic PM
---------------------------------

The user interface for controlling dynamic PM is located in the power/
subdirectory of each USB device's sysfs directory, that is, in
/sys/bus/usb/devices/.../power/ where "..." is the device's ID. The
relevant attribute files are: wakeup, control, and
autosuspend_delay_ms. (There may also be a file named "level"; this
file was deprecated as of the 2.6.35 kernel and replaced by the
"control" file. In 2.6.38 the "autosuspend" file will be deprecated
and replaced by the "autosuspend_delay_ms" file. The only difference
is that the newer file expresses the delay in milliseconds whereas the
older file uses seconds. Confusingly, both files are present in 2.6.37
but only "autosuspend" works.)

[…]

power/control

This file contains one of two words: "on" or "auto".
You can write those words to the file to change the
device's setting.

"on" means that the device should be resumed and
autosuspend is not allowed. (Of course, system
suspends are still allowed.)

"auto" is the normal state in which the kernel is
allowed to autosuspend and autoresume the device.

(In kernels up to 2.6.32, you could also specify
"suspend", meaning that the device should remain
suspended and autoresume was not allowed. This
setting is no longer supported.)[/quote]
Więcej informacji tutaj:
https://www.kernel.org/doc/Documentation/usb/power-management.txt

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Forum Debian Users Gang

Ogłoszenie

#1 2014-07-12 18:17:00

xomrk - Członek DUG

power off dla wszystkich urządzeń usb

#2 2014-07-12 18:26:02

yossarian - Szczawiożerca

Re: power off dla wszystkich urządzeń usb

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