-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Somebody in the thread at some point said:
| I'm unable to measure any difference in power consumption between WiFi on | and WiFi off. In the list archives, I see there has been much discussion | about WiFi power management. It appears that you can't really turn off WiFi | power. It's a bit of a saga, but the end result seems unbinding the driver from the device or now they are modular in packaging config, rmmod-ing the modules should do well for power on andy-tracking HEAD. Previously there was a pin on the module that looked like an on-off control, but it turned out it was nothing of the sort. | Playing with the openmoko-panel-plugin gives: | | BT on increases current draw by 7,5 mA @ 3,79 V. | GPS on increases current draw by 47 mA @ 3,79 V. | | For both BT and GPS, current draw reduces to the previous level by | turning off the device through openmoko-panel-plugin. On to GSM: Sounds good, although the GPS side may change its consumption radically depending on whether it has acquired the satellites or not. | GSM off further increases current draw by 17 mA @ 3,80 V. :-( | GSM on now _decreases_ current draw by 17 mA @ 3,80 V. Lol. | I reboot with 'shutdown -r now', hold AUX to get into NOR u-boot and boot | from SD-card. That also recovers the 2,2 mA initially drawn by GSM. All these things with closed firmware and private state are full of surprises. Do we know what the panel-plugin sources are doing to turn it off? Sending AT commands, or using the /sys, or both? - -Andy -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iEYEARECAAYFAkl1r0MACgkQOjLpvpq7dMppAQCghfMmZT1CpxWIHHYA/MO72e5z daQAn1pNhgo/sMIMYWGwk8AC1m/HpkgW =XYhC -----END PGP SIGNATURE----- _______________________________________________ hardware mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/hardware
