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| Vajb | is it possible to make n900 lock the screen when i close hwkbd? | 03:21 |
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| Oksana | Does it send a dbus signal when hwkbd is being closed? | 03:34 |
| Vajb | not sure, but it must send something since device wakes up when kbd is opened... | 03:37 |
| Vajb | i think i saw entries in syslog about hwkbd activated and deactivated | 03:38 |
| Vajb | slide open, slide closed actually... | 03:39 |
| Vajb | and actually n900 actually locks the screen if it is locked when i open kbd and close it, without touching screen | 03:41 |
| Vajb | from syslog "slide (GPIO 71) is now open" | 03:50 |
| Vajb | "slide (GPIO 71) is now closed" | 03:52 |
| Oksana | Yes, dbus-monitor --system reports platform_slide events too | 04:08 |
| Vajb | so i would need a script which trickers lock command when it sees slide closed, i guess | 04:09 |
| Vajb | no idea how to make one tho... | 04:10 |
| Maxdamantus | You can always just poll the gpio node in sysfs. | 04:11 |
| Oksana | I suggest the dbus because there is dbus-scripts-settings in maemo repositories. | 04:12 |
| Maxdamantus | Can just open the right /sys/devices/platform/gpio-switch/*/state file, read it, poll it for POLLPRI, repeat | 04:14 |
| * Maxdamantus is guessing that would be simpler than anything involving dbus. | 04:15 | |
| * Oksana nods, but thinks that it would be nice to have something event-based, instead of polling the state every second or something | 04:18 | |
| * Oksana goes to read start-up scripts in /etc/something.d/ ; do they detect slide as event? | 04:19 | |
| Oksana | Init scripts are an interesting field | 04:22 |
| Maxdamantus | When I say "poll", I mean poll(2) | 04:36 |
| Maxdamantus | The operation that waits for an event on a set of fds. | 04:36 |
| Vajb | dbus-script-settings has just keyboard slide option. Or should it be taken care on command "lock if unlocked and unlock if locked" | 04:38 |
| Oksana | fds? Waiting for an event sounds nice | 04:40 |
| Maxdamantus | file descriptors | 04:42 |
| Maxdamantus | If you're using Python, it seems like it should be simple enough using the `select` module thing. | 04:43 |
| Maxdamantus | something like: f = open("/sys/..", "r"); while True: state = f.read(); poll = select.poll(); poll.register(f, select.POLLPRI); poll.poll(); f.seek(0); | 04:45 |
| Maxdamantus | So you just detect when `state` changes from "open\n" to "closed\n" or whatever. | 04:46 |
| Maxdamantus | Actually, don't need to create a `poll` object each iteration. Just register it outside of the loop then keep doing `state = f.read(); poll.poll(); f.seek(0)` | 04:49 |
| Maxdamantus | Python seems to have a decent IO library. | 04:50 |
| * Maxdamantus wishes it were also a decent language. | 04:50 | |
| Vajb | u lost me | 04:56 |
| Maxdamantus | What I'm saying is, you should be able to write something as simple as this: f = open("/sys/..", "r"); poll = select.poll(); poll.register(f, select.POLLPRI); while True: state = f.read(); print(state); poll.poll(); f.seek(0); | 05:00 |
| Maxdamantus | which should print the state of the GPIO each time it's updated. | 05:00 |
| Oksana | Does poll.poll(); means wait-till-an-event-happens? | 05:00 |
| Maxdamantus | Don't need dbus or anything fancy. | 05:00 |
| Maxdamantus | Oksana: yes, so the process is doing nothing until that event occurs. | 05:01 |
| Oksana | Sounds short and simple. Is it doable in C? | 05:01 |
| Maxdamantus | Yes. | 05:01 |
| Maxdamantus | but at work atm, so not going to produce example C code. man 2 poll | 05:02 |
| Oksana | And the program will be idling in background all the time, but at least not using any resources/CPU... | 05:02 |
| Maxdamantus | Indeed. | 05:02 |
| Oksana | What is already idling in the background and sending these dbus signals about slider being opened and closed? | 05:03 |
| * Maxdamantus has a small C program that does something similar to skip songs in mpd when the shutter button is pressed. | 05:03 | |
| Vajb | hmm i see. So i would c translator | 05:09 |
| Vajb | i'll see what i manage when i get back home | 05:09 |
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| DocScrutinizer05 | what the heck are you talking about? dbus-scripting doesn't need polling | 05:29 |
| Oksana | Different things. dbus-scripts is one solution to detect keyboard-slide being closed, while polling is another (python example above, but just as doable in C). | 05:30 |
| DocScrutinizer05 | http://talk.maemo.org/showthread.php?t=48504 | 05:34 |
| DocScrutinizer05 | btw maemo,org cert invalid. talk.maemo.org search a total fail | 05:38 |
| DocScrutinizer05 | nevermind the second | 05:39 |
| DocScrutinizer05 | for locking screen just replace the aplay line in my playswoosh script by the according dbus call from phonecontrol | 05:40 |
| DocScrutinizer05 | err play-sound | 05:40 |
| DocScrutinizer05 | also you want to change "$slide == open" to "$slide == closed" | 05:42 |
| DocScrutinizer05 | or follow my original instructions as of >>for the screen locking on closing kbd slider you may want to add the "else" lines from above<< | 05:43 |
| DocScrutinizer05 | Oksana: dbus-monitor (and dbus-scripting) do wait for events. If they use poll() or another equivalent function for it I don't know and doesn't matter | 05:47 |
| DocScrutinizer05 | I suspect I'm missing parts of the convo, didn't see how init scripts came in, nor any polling script | 05:55 |
| Oksana | Question is, do dbus-scripts add an additional overhead, compared against a lower-level (?) polling of device state? | 05:57 |
| DocScrutinizer05 | you do not want to do any polling! that eats battery like mad. Poll() and select() have nothing to do with polling. You also can't use poll() in this context | 05:59 |
| DocScrutinizer05 | and no, dbus-scripting doesn't add any overhead | 05:59 |
| DocScrutinizer05 | see slide=$(cat sys/devices/platform/gpio-switch/slide/state); in my script, poll() on sysnodes doesn't work usually | 06:01 |
| DocScrutinizer05 | it's non-blocking | 06:01 |
| DocScrutinizer05 | thus you can't use poll() | 06:01 |
| DocScrutinizer05 | polling would be while sleep 1; do slide=$(cat sys/devices/platform/gpio-switch/slide/state); done; | 06:02 |
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| DocScrutinizer05 | since that's BAD(TM), my script waits for activation by dbus-scripting and then reads out state of slider since stupid dbus messages don't tell the state of a "swirch", only the fact that it changed | 06:03 |
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| DocScrutinizer05 | btw also inotify() doesn't work on sysnodes since their content gets dynamically created on on read() | 06:12 |
| DocScrutinizer05 | s/on on/only on/ | 06:13 |
| DocScrutinizer05 | that's also the reason why they are usually non-blocking read() and thus can't make use of poll() | 06:13 |
| Vajb | thx DocScrutinizer05, i'll try ur play-sound script after i get some sleep. | 06:23 |
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| Maxdamantus | 15:01:13 < DocScrutinizer05> see slide=$(cat sys/devices/platform/gpio-switch/slide/state); in my script, poll() on sysnodes doesn't work usually | 08:18 |
| Maxdamantus | It specifically does for GPIO "state" nodes with POLLPRI | 08:18 |
| Maxdamantus | See Documentation/gpio/sysfs.txt .. it's the normal behaviour on Linux. | 08:20 |
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| Maxdamantus | also to clarify, I never intended "polling" as in `for(;;){ sleep(1); check(); }` | 08:26 |
| Maxdamantus | I was specifically referring to `poll(2)` | 08:26 |
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| Maxdamantus | The code I wrote works as-is btw | 10:02 |
| * Maxdamantus just copied it into the repl | 10:02 | |
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| sixwheeledbeast^ | Locking screen on keyboard state closed would drive me mad. | 13:47 |
| enyc | -> talk.maemo.org SSL certificate error fail expired today! | 13:47 |
| enyc | Can we have IPv6-enabled on server and SSL letsencrypt or something that autorenews ???? | 13:48 |
| enyc | I can help [...] | 13:48 |
| enyc | not sure who looks after servers | 13:48 |
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| sixwheeledbeast^ | Certs are to be renewed. http://mg.pov.lt/maemo-irclog/%23maemo.2017-07-28.log.html#t2017-07-28T10:59:38 | 14:29 |
| sixwheeledbeast^ | I would imagine it will be mentioned on Tuesday's meeting if it hasn't happened. | 14:30 |
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| enyc | ok but outdate atlready ran-out ?? | 14:49 |
| enyc | warfare: meow! =) | 14:49 |
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| enyc | hrrm expried a wek ago actually | 15:00 |
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| DocScrutinizer05 | LE is a PITA | 19:43 |
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| DocScrutinizer05 | juiceme: could you get a 2 xear wildcard cert and get the expense refunded by MCeV? | 19:44 |
| DocScrutinizer05 | pleeease! | 19:45 |
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| freemangordon | Hi there :) | 22:35 |
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| TheKit | hi! | 23:09 |
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