[cups.bugs] [LOW] STR #2677: usb backend didn't detect printer

[Michael Sweet]

Jordi Fernández wrote:
> On Friday 18 January 2008 06:03:30 Michael Sweet wrote:
>> [STR Closed w/o Resolution]
>>
>> It's either a problem with the kernel driver or your device.
>>
>> Link: http://www.cups.org/str.php?L2677
>> Version: 1.2.12
> 
> I also suposed it, but kernel people says that it seems a CUPS problem.
> I have this problem only with 2 of my 4 printers: 
> 
> This one  (That works fine if I directly call #echo "Hello world" 
>> /dev/usb/lp0) :
> T:  Bus=03 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#=  6 Spd=12  MxCh= 0
> D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
> P:  Vendor=04b8 ProdID=0202 Rev= 1.00
> S:  Manufacturer=EPSON
> S:  Product=TM-T88IV
> S:  SerialNumber=J4HG006757
> C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=  2mA
> I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=02 Driver=usblp
> E:  Ad=01(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
> E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
> 
> And this (I can't test it with the above command because it's not a raw 
> printer):
> T:  Bus=01 Lev=01 Prnt=01 Port=02 Cnt=01 Dev#= 18 Spd=480 MxCh= 0
> D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
> P:  Vendor=10ce ProdID=000e Rev= 0.01
> S:  Manufacturer=SHINKO
> S:  Product=CHC-S2145
> ...
> The others, runs perfectly with the same kernel and cups configuration, for 
> example this:
> ...
> S:  Manufacturer=Hewlett-Packard
> ...
> What could I do ?

Get a USB bus analyzer and see what the Shinko printer is doing.

-- 
______________________________________________________________________
Michael Sweet, Easy Software Products           mike at easysw dot com