I would try it with the Alternate UHCI driver as well
to see if that makes any difference, along with Gerrit's
suggestions.
~Randy
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, May 11, 2000 6:42 AM
> To: Gerrit Hiddink
> Cc: [EMAIL PROTECTED]; [EMAIL PROTECTED]
> Subject: Re: [linux-usb] HP USB CD-Writer Plus support
>
>
>
> >> A colleague of mine has an HP USB CD-Writer Plus, 8200
> series, and we
> >> attempted to get it to work under Linux, but to no avail.
> We tried it with
>
> >What error message do you get? Does it fail immediately with an
> >"/dev/scd0 has wrong major or minor number", or does mount fail
> >to read data?
>
> Yes, indeed. It fails right away with
> "/dev/scd0 has wrong major or minor number"
>
> >My HP USB CD-Writer Plus (model 8210e) at first had similar symptoms.
> >Matt Dharm suggested to change the unusual_devices entry: change it
> >into
>
> >{ 0x03f0, 0x0207, 0x0001,
> > "HP USB CD-Writer Plus", US_SC_8070, US_PR_CB, US_FL_SINGLE_LUN}
>
> >which worked (for me). Also, make sure you have SCSI CDROM
> support compiled
> >into the kernel. I loaded sr_mod, scsi_mod and cdrom (as
> well as the USB
> >modules of course) and then it worked. Reading, that is.
> Haven't tried
> >writing CD's yet.
>
> I don't have SCSI CDROM compiled into the kernel, but tried
> to load it as
> module. Does this really make a difference? If so, I can try
> to recompile
> the kernel...
>
> >Eventually you should get a message that says:
>
> >scsi0 : SCSI emulation for USB Mass Storage devices
> >scsi : 1 host.
>
> >(as you did)
>
> >detected scsi CD-ROM sr0 at ascsi0, channel 0, id 0, lun 0
> >sr0: scsi3-mmc drive: 1x/163x xa/form2 caddy
>
> >I'm not sure if the information in the last line is
> sufficiently accurate,
> >but at least it reads data. You should find the sr0 device
> in /proc/devices.
>
> >> usb-storage.c: *** thread awakened.
> >> usb-storage.c: Command TEST_UNIT_READY (6 bytes)
> >> usb-storage.c: 00 00 00 00 00 00 13 c0 e0 e1
> >> usb_control/bulk_msg: timeout
>
> >do you find TEST_UNIT_READY commands that do not timeout in
> your logfile?
>
> No other TEST_UNIT_READY data in the logfile.
>
> >Grit
>
> Here is some more data:
>
> Output of cat /proc/scsi/usb-storage/0 :
> > cat scsi-id
> Host scsi0: usb-storage
> Vendor: Hewlett Packard
> Product: HP Mesa
> Serial Number: None
> Protocol: 8070i
> Transport: Control/Bulk
> GUID: 03f002070000000000000000
>
>
> Contents of /proc/bus/usb/dev:
>
> T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
> B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0
> D: Ver= 1.00 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
> P: Vendor=0000 ProdID=0000 Rev= 0.00
> S: Product=USB UHCI Root Hub
> S: SerialNumber=fce0
> C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA
> I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
> E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=255ms
> T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=12 MxCh= 0
> D: Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=16 #Cfgs= 1
> P: Vendor=03f0 ProdID=0207 Rev= 0.01
> S: Manufacturer=Hewlett Packard
> S: Product=HP Mesa
> C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA
> I: If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=01 Prot=ff
> Driver=usb-storage
> E: Ad=81(I) Atr=03(Int.) MxPS= 4 Ivl= 5ms
> E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl= 0ms
> E: Ad=03(O) Atr=02(Bulk) MxPS= 64 Ivl= 0ms
>
>
>
> Thanks,
>
> Alain
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