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DSP really changes header in answer? but why? applications never checks it, as far as i know --Mailwl 13:47, 21 June 2015 (CEST)

Many do that in case of an error for example some errors in the GSP come back with 0x00000040 --User:ichfly

All services change the header, because it's used by the kernel to know how to send the parameters back to the calling process. Yuriks 00:49, 23 June 2015 (CEST)

Ah, this make sense --Mailwl 08:38, 23 June 2015 (CEST)