Messages in this thread | | | Date | Mon, 6 Apr 2009 16:08:50 -0400 | Subject | Re: USB disconnect, address 6 | From | "J.R. Mauro" <> |
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On Mon, Apr 6, 2009 at 3:33 PM, Jon Grant <jg@jguk.org> wrote: > Hi > > 2009/4/6 Greg KH <greg@kroah.com>: >> On Mon, Apr 06, 2009 at 11:11:55AM +0200, Jon Grant wrote: > [..] >>> The idea was that the disconnect could give more information. >>> Otherwise it's necessary to go hunting back up the log to track down >>> which USB device was the one disconnected (which works fine, but isn't >>> ideal for time consumed doing this regularly). >> >> As you yanked the device out, don't you know which one it was? > > I do get devices disappear without me disconnecting them, various > different PCs, and laptops. > > [..] >>> Apr 5 18:56:58 data-laptop kernel: usb 5-1: USB disconnect, address 6 >>> (Samsung Mighty Drive) >>> >>> Would this not be clearer? >> >> That might be nice, but note that the kernel doesn't even know the >> strings after a device is gone, as it had to read them from the device >> :) > > Yeah, would need to cache the names, perhaps you don't want to bloat > the kernel that way. > >> Also, lots of devices don't have strings describing them, and some of >> them are just flat out wrong. And, if you have multiple devices of the >> same type, it wouldn't really help out any either. > > Well personally I would rather at least know the class of the device > which went, and would put up with incorrect info in preference to no > info.
You could perhaps write a script that could look through the logs and infer which device it was without touching the kernel at all.
> >> So it would be a bit difficult to do this, sorry. > > Thanks anyway for considering it. > > Best regards, Jon > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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