Am Mi 23. April 2008 schrieb Andy Green: > Somebody in the thread at some point said: > | On Tue, 22 Apr 2008 15:42:36 +0100 Andy Green <[EMAIL PROTECTED]> babbled: > | > |> -----BEGIN PGP SIGNED MESSAGE----- > |> Hash: SHA1 > |> > |> Somebody in the thread at some point said: > |> | This afternoon I recognized my laptop throwing a note about "USB device > |> | detached" when Freerunner goes suspend. > |> | Raster knows, at least Windows definitely will power down the > |> USB-connector > |> | when it sees USB-disconnect. > |> | > |> | Maybe we should investigate this, and should clock down the CPU and > |> shut off > |> | LCM, but not go to suspend while charging. > |> | I should mention I'm not even sure Freerunner did charge at all at this > |> | moment, just in case this makes a difference. > |> > |> What's the actual concern there? If it is to do with missing charging > |> state change, the PMU throws an interrupt to the CPU on USB connector > |> insertion and removal, AFAIK these will cause wake. > | > | concern is: > | > | we plug in, phone wakes. phone gets bored. phone goes to sleep. uspend > happens. > | pc detects device removal. pc powers down usb port. phone does not > have power > | from usb. no charging happens. > > Normal PC doesn't "power down USB port" I think you'll find. The port > has to be powered to detect next device insertion. That's what I thought to know about USB. Anyway...
> You can confirm with > one of these USB reading lamps for example that have no smarts inside. > > -Andy >
