Messages in this thread | | | Subject | usb debug port documentation | From | Johannes Berg <> | Date | Fri, 14 May 2010 12:31:16 +0200 |
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Hi,
I've been looking at http://www.kernel.org/doc/Documentation/x86/earlyprintk.txt and spent a while finding everything correctly in place. One of the big unknowns is what way debug ports are enumerated, so if you have a few USB ports you end up trying a lot. At the same time, I at least wasn't sure I was doing everything correctly to start with. It does seem, for example, that I needed the serial driver built in the kernel too?
In any case, to help others I was wondering if we should start a wiki page somewhere or so that just lists what port on various machines people have gotten it to work on? I have a Toshiba Satellite U505 and earlyprintk=dbgp,keep uses the port on the right-hand side of the machine... That information could possibly help somebody who is setting it up for the first time, since it reduces the search space? :)
If there's an appropriate wiki, I'd like to be pointed to it so I can start a page and submit a kernel patch pointing to it. Otherwise I'll just create it internally since we all typically use just a handful of machine types, but it seems like public could help more people.
johannes
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