Use USB vendor and product IDs to determine whether the attached
device is a CDROM or a Flash device. Daniel Drake says that the
*same* vendor and product IDs for non-HP vendor ID could be either
flash or cdrom, so try to probe for them.
Signed-off-by: Peter Chubb <peterc@gelato.unsw.edu.au>
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
I've worked out what's going wrong. The scsi layer is now much
more likely to pass down scatterlists instead of plain buffers. So
you have to make sure that they're handled correctly. In one of the
changes along the way, usbat_write_block and friends stopped obeying
the srb->use_sg flag.
Anyway, with the appended patch, and the one I'm putting in the next email, it
all seems to work for the HP cd4e. Of course, someone's going to have
to test it with the flash drives as well....
This patch teaches the usbat_{read,write}_block functions to
obey the use_sg flag in the scsi-request.
Signed-off-by: Peter Chubb <peterc@gelato.unsw.edu.au>
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
another one for kzalloc. This covers the storage subdirectory.
Signed-off-by: Oliver Neukum <oliver@neukum.name>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Peter Favrholdt reported that his Kodak flash device was getting
detected as a CDROM, and he helped me track this down to the fact that
the device takes a long time (approx 440ms!) to reset.
This patch increases the delay to 500ms, which solves the problem.
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
A while ago, Matthew Dharm wrote:
> Looks good. Tho, I would like to see a future patch to do two things:
> 1) Change comments from C++ style to C-style
> 2) Make sure we're naming consistently everywhere SCM, USBAT,
> USBAT-02 (most noticably needing fixing is the string used at
> transport-selection time, but a sweep of all uses to be consistent
> would be in order).
Sorry for the long delay, here is a patch to address this. I also clarified
some ATA/ATAPI wording + function names.
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/usb/storage/shuttle_usbat.c | 306 ++++++++++++++++++++----------------
drivers/usb/storage/shuttle_usbat.h | 66 +++----
drivers/usb/storage/transport.h | 2
drivers/usb/storage/unusual_devs.h | 10 -
drivers/usb/storage/usb.c | 4
5 files changed, 213 insertions(+), 175 deletions(-)
There appears to be one more case where the HP8200 CD writer devices are
detected as flash readers - when the USB cable is replugged after use, with
the power cable still connected.
Oddly enough, the identify device command appears to 'fall through' when the
devices are in this state, the status register reading exactly the same opcode
as the command (0xA1) that was just executed.
I think it's safe to label this behaviour as specific to HP8200 devices, I
can't get the flash devices to respond like this.
This patch should solve the last of the HP8200 issues which have cropped up
recently.
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/usb/storage/shuttle_usbat.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
Adding flash-device support to the shuttle_usbat driver in 2.6.11
introduced the need to detect which type of device we are dealing with:
CDRW drive, or flash media reader.
The detection routine used turned out to not work for HP8200 CDRW users,
who saw their devices being detected as a flash disk.
This patch (which has been tested on both flash and cdrom) removes some
unnecessary code, moves device detection to much later during
initialization, and introduces a new detection routine which appears to
work.
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Peter Chubb