-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi Arjan! i have two issue with powertop: 1. powertop check if usbcore autosuspen is enabled by checking /sys/bus/usb interface. but will make wrong suggestion if one of devices is blacklisted
for example this i get on my system: - -------------------------------------------------------- cat /sys/bus/usb/devices/*/power/autosuspend - -1 <== blacklisted scanner 2 2 2 2 2 - ---------------------------------------------------------------- 2. _really_important_ . latest powertop use old usb kernel API, this not working with new API: Documentation/usb/power-management.txt - ---------------------------------->8--------------------------------- power/autosuspend This file contains an integer value, which is the number of seconds the device should remain idle before the kernel will autosuspend it (the idle-delay time). The default is 2. _0_ means _to_autosuspend_ as soon as the device becomes idle, and _-1_ means _never_to autosuspend_. You can write a number to the file to change the autosuspend idle-delay time. Writing "-1" to power/autosuspend and writing "on" to power/level do essentially the same thing -- they both prevent the device from being autosuspended. Yes, this is a redundancy in the API. (In 2.6.21 writing "0" to power/autosuspend would prevent the device from being autosuspended; the behavior was changed in 2.6.22. The power/autosuspend attribute did not exist prior to 2.6.21, and the power/level attribute did not exist prior to 2.6.22.) - ------------------------------------------------------------------- -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFHW76EVVCoNUmKuAcRAqfGAKC4COauYeNVWCIcmcq0o+NZy/A9AACfRUqZ +aR24NkxI1h4+bQy9naCdtQ= =si3K -----END PGP SIGNATURE----- _______________________________________________ Power mailing list Power@bughost.org http://www.bughost.org/mailman/listinfo/power