262
Idiot firmware is bored
(sh.itjust.works)
Running dmesg on PinePhone reveals that idiot firmware is bored.
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this post was submitted on 19 Feb 2024
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Just to clarify, this is the keyboard addon that I was talking about. It has a built-in battery. It has a button on the side that lets you toggle the battery on and off. When I disable the battery and plug in a USB mouse, it will work, just as it does without the addon. But not with the battery enabled. So the extra battery must be interfering with the power to the USB port somehow. Surprisingly the result is the same even when plugging in a powered USB-C hub with the mouse plugged into it.
When I disable the battery, then plug in the mouse and then enable the battery again, the mouse will keep working.
I don't know much about the hardware, though. I'm even surprised that the modem has something to do with delivering power to devices.
Edit: I guess misunderstood some things. anx7688 seems to be a USB controller. The modem is separate from the SoC and is connected internally via USB. But maybe it's not a problem with the modem in this case, but with the controller.
That's my bad, I should've specified that anx7688 is the USB-C bridge driver controlling all USB devices along with the modem.
In this case the modem is being effected by the USB charging state & USB-C peripherals over CC pins from anx7688.
Your other issues are very likely tangentially related to the modem error messages caused by an underlying issue within the anx7688 USB-C bridge driver's controller.
I guess that's a pinephone thing, to keep modem and phone separate? How is it usually connected, with all the things it can do on your phone?
Yeah, it's to isolate the modem and I think it's done the same way in Librem 5. Both phones also have a killswitch that lets you power off the modem. As far as I know other phones instead have the modem built into the SoC and there is some isolation too, but I don't really know how that works and I guess it's done by the chip's manufacturer (but I'm not sure).
https://en.wikipedia.org/wiki/PinePhone