Hi there,
Can't see the /{proc,sys} interface documented in places I expect to be
like https://github.com/torvalds/linux/tree/master/drivers/usb
And the mailing list search is pretty awful:
https://marc.info/?l=linux-usb&w=2&r=1&s=power+measure&q=b
My use case is to examine the power draw from my USB port of my iPhone:
lsusb | grep iPhone
Bus 001 Device 009: ID 05ac:12a8 Apple, Inc. iPhone5/5C/5S/6
First problem is to identify the USB port! Currently I am `find
/sys/devices | grep usb` & wondering how on earth it maps to "Bus 001
Device 009: ID 05ac:12a8".
Next I am hoping the see the power consumption my mA or something like
that?
I did eventually find https://unix.stackexchange.com/a/81615/27433 but
why isn't the a /proc like interface to this? Is there a way to see the
negotiation somehow since my iPhone doesn't seem to like 500mA.
Many thanks!
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