On Sun, 2 Jan 2011, vichy wrote: > From your suggestion it seems the error number has levels, I mean from > xx to yy I can search in include/linux but from yy to zz, I have to > search from some where? > Would you mind telling me the rule? I don't think there is any rule, except this one: Searching in include/linux/errno.h isn't sufficient; you also have to search in the files that it #include's (and in the files that they #include, and so on). Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html