Daniel Walker wrote: > On Thu, 2009-03-05 at 10:00 +0000, Yinghai Lu wrote: > >> + >> +Mini-HOWTO for using the earlyprintk=dbgp boot option with a >> +USB2 Debug port key and a debug cable, on x86 systems. >> + >> +You need two computers, the 'USB debug key' special gadget and >> +and two USB cables, connected like this: >> + >> + [host/target] <-------> [USB debug key] <-------> [client/console] >> + >> +1. There are three specific hardware requirements: >> + >> + a.) Host/target system needs to have USB debug port capability. >> + >> + You can check this capability by looking at a 'Debug port' bit in >> + the lspci -vvv output: > > ... > >> + c.) Thirdly, you need a second client/console system with a regular USB port. > > You might want to combine a.) and c.) since there is some disconnect > between the two. c.) doesn't explicitly say a second time that the > client/console needs the debug port capability .. > > Or say > > a.) You will need two USB ports. One on the client/console system and > one one the target system. > > b.) The client/console and target USB ports must have the debug port > capability. You can check for this as follows, > > c.) ... thanks for checking it. can you submit patch to Ingo according to tip/master? YH -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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