=== yofel_ is now known as yofel
=== doko_ is now known as doko
[17:22] <VarmVaffel> my embedded linux computer kernel crashes every time I insert a USB 3G modem
[17:22] <VarmVaffel> I've tried with 5 different 3G modems
[17:22] <VarmVaffel> all with the same result
[17:22] <VarmVaffel> other USB devices seem to work properly
[17:22] <VarmVaffel> anyone got any experience with this?
[17:33] <RaYmAn> no dmesg log or similar?
[17:35] <VarmVaffel> no, the crash is instantaniously
[17:35] <VarmVaffel> I've tried adding a few printk's in the USB moddule, but I cannot seem to get it early enough to print something out
[17:36] <VarmVaffel> before it crashes
[17:36] <VarmVaffel> I couldn't even light a LED on the board
[17:36] <VarmVaffel> you would think then it could be something like an overcurrent on the USB port or something, but it doesn't seem like that either
[17:38] <RaYmAn> just for sanities sake, I'd try it through a powered hub
[17:41] <VarmVaffel> oh good idea
[17:43] <VarmVaffel> oh fuck me it actually works
[17:43] <RaYmAn> a lot of devices seem to fail at usb power stuff, so if the usb devices draws too much, weird ass crashes happen
[17:43] <VarmVaffel> why haven't I tried this any sooner
[17:43] <VarmVaffel> jesus christ
[17:43] <RaYmAn> heh
[17:43] <VarmVaffel> I can't seriously belive I didn't think of trying that
[17:44] <VarmVaffel> thanks
[17:44] <RaYmAn> np :)
[17:44] <RaYmAn> soo many people had this issue with rpi
[17:45] <VarmVaffel> right right
[17:45] <VarmVaffel> well I have to get around this issue
[17:45] <VarmVaffel> guess I could short out the overcurrent circuit
[17:47] <VarmVaffel> do you know how pwople came around this issue on the rpi?
[17:47] <VarmVaffel> did they simply just use the external hub?
[17:49] <RaYmAn> pretty much
[17:49] <RaYmAn> rpi people also changed newer revisions so it allows to provide more power
[17:49] <VarmVaffel> hm alright
[17:49] <VarmVaffel> yeah the problem with this embedded is that it's actually powered by a single USB cable :p
[17:50] <VarmVaffel> it does however have a battery, so maybe it's enough with those combined
=== tassadar__ is now known as Tassadar