Hi, * Pavel Machek <pavel@xxxxxx> [181228 20:46]: > I have ofone with direct AT access -- > https://github.com/pavelmachek/unicsy_demo/blob/master/ofone/at.py . OK thanks, that shows some of the commands I was wondering about. > Now, ttyUSB4 provides quite a rich interface, and you can actually > select what if you want messages in text and PDU format, and if you > want modem to auto-acknowledge messages for you. So which AT command configures auto-ack of SMS? I don't need it, just wondering what all these commands do. > What kind of battery life do you get with all the optimalizations? > IIRC I was getting 7h with ttyUSB4 in use... With droid4-pending-mdm-v4.20 branch in the following state: - UARTs idled - LCD blanked (well no drivers yet droid4-sms-read.rb) - MUSB and EHCI USB modules unloaded - OHCI loaded with all the children in autosuspend via sysfs - WLAN connected - busybox acpid stopped (yup, it keeps polling something???) - MDM6600 online with AT+CFUN=1 on /dev/motmdm1 - MDM6600 notifications disabled with AT+SCRN=0 on /motmdm1 - droid4-sms-read.rb running I'm seeing droid 4 idle at 119mW according to my power supply. So I guess theoretical battery life would currently be (1785mWh * 3.8V) / 119mW = 57h. But in practise things are not completely idle and monitoring sysfs POWER_SUPPLY_POWER_AVG every 10 seconds I'm seeing something along these 10 samples: POWER_SUPPLY_POWER_AVG=138938 POWER_SUPPLY_POWER_AVG=134571 POWER_SUPPLY_POWER_AVG=505802 POWER_SUPPLY_POWER_AVG=240412 POWER_SUPPLY_POWER_AVG=134252 POWER_SUPPLY_POWER_AVG=132694 POWER_SUPPLY_POWER_AVG=571569 POWER_SUPPLY_POWER_AVG=132694 POWER_SUPPLY_POWER_AVG=190456 POWER_SUPPLY_POWER_AVG=518288 So the average based on that sampling is about 270mW and the idle time should be about 1785 * 3.8 / 270 = 25h, which is quite usable already :) Regards, Tony