Re: udev rule for usb printer

[Bob Barry <bobb@absamail.co.za>]

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Kay -

On Thursday 22 January 2004 12:04, Kay Sievers wrote:
> I don't have any usb printer, what does:
> 
>   "tree /sys/class/usb"
>   "tree /sys/devices/pci0000:00/0000:00:02.0/usb1"
> 
> print on your machine?

I don't have tree.  I replaced fileutils and others with coreutils; perhaps
there was an oversight.  Will have to hunt for it.

But I battled on with /proc, /sys, and find.  I found where the files are,
but udevinfo (and presumably udev itself) rejects that path.  It's all in
the attached file - please have a look.

Thanks,

Bob

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> cat /proc/bus/usb/devices

T:  Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=12  MxCh= 3
B:  Alloc=  0/900 us ( 0%), #Int=  0, #Iso=  0
D:  Ver= 1.10 Cls=09(hub  ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=0000 ProdID=0000 Rev= 2.06
S:  Manufacturer=Linux 2.6.1 ohci_hcd
S:  Product=OHCI Host Controller
S:  SerialNumber=0000:00:03.0
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=   2 Ivl=255ms

T:  Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=12  MxCh= 3
B:  Alloc=  0/900 us ( 0%), #Int=  0, #Iso=  0
D:  Ver= 1.10 Cls=09(hub  ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=0000 ProdID=0000 Rev= 2.06
S:  Manufacturer=Linux 2.6.1 ohci_hcd
S:  Product=OHCI Host Controller
S:  SerialNumber=0000:00:02.0
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=   2 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=043d ProdID=0018 Rev= 1.00
S:  Manufacturer=Lexmark
S:  Product=Lexmark Z52
C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr=  4mA
I:  If#= 0 Alt= 0 #EPs= 2 Cls=07(print) Sub=01 Prot=02 Driver=usblp
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=83(I) Atr=02(Bulk) MxPS=  16 Ivl=0ms

> find /sys -follow -type f -name "*product" | xargs grep Z52
/sys/class/usb_host/usb2/driver/0000:00:02.0/usb1/1-1/product:Lexmark Z52
/sys/class/usb_host/usb1/driver/0000:00:02.0/usb1/1-1/product:Lexmark Z52
/sys/class/usb_host/usb1/device/usb1/1-1/product:Lexmark Z52
/sys/bus/usb/drivers/usb/1-1/product:Lexmark Z52
/sys/bus/usb/drivers/usb/usb1/1-1/product:Lexmark Z52
/sys/bus/usb/devices/1-1/product:Lexmark Z52
/sys/bus/usb/devices/usb1/1-1/product:Lexmark Z52
/sys/bus/pci/drivers/ohci_hcd/0000:00:02.0/usb1/1-1/product:Lexmark Z52
/sys/bus/pci/devices/0000:00:02.0/usb1/1-1/product:Lexmark Z52
/sys/devices/pci0000:00/0000:00:02.0/usb1/1-1/product:Lexmark Z52

> cd udev/udev-014/extras/udevinfo/

> ls /sys/class/usb_host/usb1/device/usb1/1-1        
1-1:1.0              bDeviceProtocol  bNumConfigurations  idVendor      speed
bcdDevice            bDeviceSubClass  bNumInterfaces      manufacturer
bConfigurationValue  bmAttributes     detach_state        power
bDeviceClass         bMaxPower        idProduct           product

> ./udevinfo /sys/class/usb_host/usb1/device/usb1/1-1/product
couldn't get the class device
> ./udevinfo /sys/class/usb_host/usb1/device/usb1/1-1        
couldn't get the "dev" file
> ./udevinfo /sys/class/usb_host/usb1/device/usb1    
couldn't get the "dev" file
> ./udevinfo /sys/class/usb_host/usb1/device     
couldn't get the class device
> ./udevinfo /sys/class/usb_host/usb1       
couldn't get the "dev" file

> ls /sys/bus/usb/devices/1-1
1-1:1.0              bDeviceProtocol  bNumConfigurations  idVendor      speed
bcdDevice            bDeviceSubClass  bNumInterfaces      manufacturer
bConfigurationValue  bmAttributes     detach_state        power
bDeviceClass         bMaxPower        idProduct           product

> ./udevinfo /sys/bus/usb/devices/1-1/product
couldn't get the class device
> ./udevinfo /sys/bus/usb/devices/1-1        
couldn't get the class device
> ./udevinfo /sys/bus/usb/devices    
couldn't get the "dev" file