Hello.
Description:
echo "test" > /dev/usb/lp0 does not produce USB connecte printer to
print. It simply blinks 1 time and stops.
After compiling printer.o(2.4.20) with #deine DEBUG, pinter logs 1
string and continue to keep silence:
./printer.c: usblp_control_msg: rq: 0x01 dir: 1 recip: 1 value: 0
len:0x1 result: 1
On insmod printer, "printer" says:
usb.c: registered new driver usblp
./printer.c: usblp0 set protocol 2
./printer.c: usblp_control_msg: rq: 0x00 dir: 1 recip: 1 value: 0 len:
0x3ff result: 78
./printer.c: usblp0 Device ID
string[len=78]="MFG:Samsung;CMD:GDI;MDL:ML-1210;CLS:PRINTER;MODE:GDI;ST
ATUS:I DLE;CODE:40000;"
./printer.c: usblp_control_msg: rq: 0x01 dir: 1 recip: 1 value: 0
len:0x1 result: 1 ./printer.c: usblp0: USB Bidirectional printer dev 3
if 0 alt 0 proto 2 vid 0x04E8 pid 0x300C
./printer.c: v0.11: USB Printer Device Class driver
/proc/usb/devices:
T: Bus=02 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-alt Root Hub
S: SerialNumber=9000
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=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
B: Alloc=118/900 us (13%), #Int= 1, #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-alt Root Hub
S: SerialNumber=9400
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=1.5 MxCh= 0
D: Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=046d ProdID=c030 Rev= 1.01
S: Manufacturer=Logitech Inc.
S: Product=iFeel Mouse
C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=500mA
I: If#= 0 Alt= 0 #EPs= 2 Cls=03(HID ) Sub=01 Prot=02 Driver=hid
E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=10ms
E: Ad=01(O) Atr=03(Int.) MxPS= 8 Ivl=10ms
T: Bus=01 Lev=01 Prnt=01 Port=01 Cnt=02 Dev#= 3 Spd=12 MxCh= 0
D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=16 #Cfgs= 1
P: Vendor=04e8 ProdID=300c Rev= 1.00
S: Manufacturer=Samsung Electronics Co., Ltd.
S: Product=Samsung Laser Printer ML-1200 Series
C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr= 0mA
I: If#= 0 Alt= 0 #EPs= 2 Cls=07(print) Sub=01 Prot=02 Driver=usblp
E: Ad=03(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=81(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
/proc/usb/drivers:
usbdevfs
hub
hid
0- 15: usblp
Thanks in advance.
P.S. I am not a subscriber, so please cc me in your answers.
Evgeniy Polyakov ( s0mbre )
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