Hi,
I have a USB modem that reports:

Class: 2
Subclass: 0
Protocol: 0
USB Version: 1.0

Vendor ID: 0x483
Product ID: 0x7554
Revision: 2.0

usbmngr says it is supported and seems to be trying to pass it to the acm 
driver (kernel 2.4.18), but the acm driver is not picking it up. 
proc/bus/usb/devices says:

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=d800
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=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  7 Spd=12  MxCh= 0
D:  Ver= 1.00 Cls=02(comm.) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=0483 ProdID=7554 Rev= 2.00
C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=100mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=80 Prot=ff Driver=(none)
E:  Ad=81(I) Atr=13(Int.) MxPS=   4 Ivl=  1ms
I:  If#= 0 Alt= 1 #EPs= 3 Cls=02(comm.) Sub=80 Prot=ff Driver=(none)
E:  Ad=81(I) Atr=13(Int.) MxPS=   4 Ivl=  1ms
E:  Ad=02(O) Atr=05(Isoc) MxPS= 128 Ivl=  1ms
E:  Ad=83(I) Atr=05(Isoc) MxPS= 128 Ivl=  1ms
I:  If#= 0 Alt= 2 #EPs= 3 Cls=02(comm.) Sub=80 Prot=ff Driver=(none)
E:  Ad=81(I) Atr=13(Int.) MxPS=   4 Ivl=  1ms
E:  Ad=04(O) Atr=05(Isoc) MxPS= 128 Ivl=  1ms
E:  Ad=85(I) Atr=05(Isoc) MxPS= 128 Ivl=  1ms
I:  If#= 0 Alt= 3 #EPs= 5 Cls=02(comm.) Sub=80 Prot=ff Driver=(none)
E:  Ad=81(I) Atr=13(Int.) MxPS=   4 Ivl=  1ms
E:  Ad=02(O) Atr=05(Isoc) MxPS= 128 Ivl=  1ms
E:  Ad=83(I) Atr=05(Isoc) MxPS= 128 Ivl=  1ms
E:  Ad=04(O) Atr=05(Isoc) MxPS= 128 Ivl=  1ms
E:  Ad=85(I) Atr=05(Isoc) MxPS= 128 Ivl=  1ms
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-alt Root Hub
S:  SerialNumber=d400
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

After an unplug-plug, the end of the syslog says: 

May  3 15:17:00 maveric kernel: usb.c: USB disconnect on device 7
May  3 15:17:01 maveric kernel: usb.c: deregistering driver acm
May  3 15:17:01 maveric kernel: _devfs_search_dir(acm): not a directory
May  3 15:17:01 maveric last message repeated 31 times
May  3 15:17:01 maveric usbmgr[583]: "acm" was unloaded
May  3 15:17:01 maveric usbmgr[213]: "acm" was unloaded
May  3 15:17:02 maveric kernel: hub.c: USB new device connect on bus2/1, 
assigned device number 8
May  3 15:17:02 maveric kernel: usb.c: USB device 8 (vend/prod 0x483/0x7554) 
is not claimed by any active driver.
May  3 15:17:03 maveric usbmgr[583]: vendor:0x483 product:0x7554
May  3 15:17:03 maveric usbmgr[583]: class:0x2 subclass:0x80 protocol:0xff
May  3 15:17:03 maveric usbmgr[213]: vendor:0x483 product:0x7554
May  3 15:17:03 maveric usbmgr[213]: class:0x2 subclass:0x80 protocol:0xff
May  3 15:17:03 maveric usbmgr[583]: USB device is matched the configuration
May  3 15:17:03 maveric usbmgr[213]: USB device is matched the configuration
May  3 15:17:03 maveric kernel: usb.c: registered new driver acm
May  3 15:17:03 maveric kernel: acm.c: v0.21:USB Abstract Control Model 
driver for USB modems and ISDN adapters
May  3 15:17:03 maveric insmod: insmod: a module named acm already exists
May  3 15:17:03 maveric insmod: insmod: insmod 
/lib/modules/2.4.18/kernel/drivers/usb/acm.o failed
May  3 15:17:03 maveric usbmgr[213]: "acm" was loaded
May  3 15:17:03 maveric insmod: insmod: insmod acm failed
May  3 15:17:03 maveric usbmgr[583]: "acm" was loaded

So is this device supported or not?? And if so, what do I have to do?

Thanx.

--------------------------------------------------------
Glenn Alexander - The man with no surname and a silly hat.
(B.Teach, B.Ed Major IT Education, University of Wollongong Australia)
(Now avaliable in China!)

http://www.shoalhaven.net.au/~glenalec
(last update: 2002.03.15 - change of site)Class

I use GNU/Linux: http://www.gnu.org / http://www.linux.org
from Debian: http://www.debian.org
--------------------------------------------------------
Fight software piracy. Use GNU! [ http://www.gnu.org ]
--------------------------------------------------------
The above message was bought to you by 'sigrot'



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