Date: Thu, 16 May 2002 02:34:39 -0700 From: Luigi Rizzo <rizzo@icir.org> To: stable@freebsd.org Subject: problems with USB floppy/usb and resume Message-ID: <20020516023439.A64962@iguana.icir.org>
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Hi,
since upgrading from 4.2 to a recent RELENG_4 i noticed the following
problems with my laptop (Sharp AX 10) and external USB floppy (MITSUMI)
(which used to work fine with 4.2):
+ insertion of the external device is not seen after a suspend/resume.
Killing/restarting usbd does not seem to help.
I am pretty sure that this worked with the 4.2 kernel.
usbdevs shows
addr 1: UHCI root hub, Intel
addr 2: UUT-USB41 hub, Texas Instruments
and when the device is seen, it is shown as attached to the TI hub.
da0 <MITSUMI USB FDD 1033> Removable Direct Access SCSI-0 device
da0: 20KB/s transfers
I can successfully connect devices (e.g. mice) to the root hub,
but due to different connectors I cannot connect the floppy there.
Still i suspect the TI hub not being properly reinitialised after
the resume
+ with a stock system, the system tries to issue some 6-byte and
another (sync-cache) unsupported command. I had to add quirks
to sys/cam/scsi/scsi_da.c (same as for the Y-E DATA device) to
disable the generation of those commands.
Once i do this, i can successfully read from the disk, but then
writes fail with
WRITE(10). CDB: 2a 0 0 0 0 0 0 0 8 0
ABORTED COMMAND asc:4e,0
Overlapped commands attempted
and also fdformat /dev/ad0 replies
fdformat: not a floppy disk: /dev/ad0
(this may or may not be related to the WRITE failure, though i see
no such messages when i try fdformat).
So, any idea on how to debug (and possibly fix) this stuff before
4.6 is out ?
thanks
luigi
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