> "On" or "off" doesn't really help when you're trying to debug different > parts of the driver. If you're trying to debug a command, messages > about wrapping rings or enqueueing transfers doesn't really matter. For this debugging stuff, you could look at using the trace events infrastructure, which gives very fine control over what output is enabled and overall is pretty awesome. You can look in include/trace/events for examples, eg look at include/trace/events/ext4.h and then look in fs/ext4 to see where trace_ext4_xxx() functions get called. - R. -- Roland Dreier <rolandd@xxxxxxxxx> For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/index.html -- 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