Subject: Re: kern/17599: panic when disconnecting a USB camera from a USB
To: Simon Burge <firstname.lastname@example.org>
From: Lennart Augustsson <email@example.com>
Date: 07/15/2002 11:46:41
I'm not convinced it was turning off the atapi attribute that did it.
I've seen something similar to this, and it seems to sometimes work,
and sometimes not.
Simon Burge wrote:
>On Mon, Jul 15, 2002 at 12:34:30PM +1000, Simon Burge wrote:
>>>Synopsis: panic when disconnecting a USB camera from a USB hub.
>So, turning off the atapi attribute in files.usb for umass allows this
>to work flawlessly:
> umass0 at uhub1 port 4 configuration 1 interface 0
> umass0: Sony Sony DSC, rev 1.10/4.10, addr 4
> umass0: using RBC over CBI
> scsibus0 at umass0: 2 targets, 1 luns per target
> scsibus0: waiting 2 seconds for devices to settle...
> sd0 at scsibus0 target 1 lun 0: <Sony, Sony DSC, 4.10> SCSI0 0/direct removable
> sd0: mode sense (4) returned nonsense; using fictitious geometry
> sd0: 63424 KB, 61 cyl, 64 head, 32 sec, 512 bytes/sect x 126848 sectors
> umass0: at uhub1 port 4 (addr 4) disconnected
> sd0 detached
> scsibus0 detached
> umass0 detached
>Now that I think of it, I may not have tried the a -current kernel
>(since the scsi and atapi attributes were added) with the camera plugged
>directly into the laptop - I used to have only something like:
> umass* at uhub?
> scsibus* at umass?
> sd* at scsibus?
>There's already some Sony quirks in umass_quirks.c; I'm not sure how/if
>to tell this device to not use atapi and use scsi only. Here is the device
>info from "usbdevs":
> port 4 addr 4: full speed, self powered, config 1, Sony DSC(0x0010), Sony(0x054c), rev 4.10
>Simon Burge <firstname.lastname@example.org>
>NetBSD Development, Support and Service: http://www.wasabisystems.com/