Hi there,
I've got a Trust ISDN USB Modem 64k/128k, and linux 2.2.16 patched for usb
backport, which
currently appears to work. Yeah, i've already mounted the filesystem.
However, if i create the /dev/ttyACM files, the system
reports ttyACM as Invalid Argoment... I don't know why..
The kernel detects the USB Modem, but it won't work...
I have the usbcore, acm, usb-uhci modules loaded.
INFO ON USB DEVICES:
=====================================
usb.c: unhandled interfaces on device
usb.c: This device is not recognized by any installed USB driver.
Length = 18
DescriptorType = 01
USB version = 1.00
Vendor:Product = 07b0:0001
MaxPacketSize0 = 8
NumConfigurations = 1
Device version = 0.06
Device Class:SubClass:Protocol = 00:00:00
Per-interface classes
Configuration:
bLength = 9
bDescriptorType = 02
wTotalLength = 0027
bNumInterfaces = 01
bConfigurationValue = 01
iConfiguration = 00
bmAttributes = a0
MaxPower = 250mA
Interface: 0
Alternate Setting: 0
bLength = 9
bDescriptorType = 04
bInterfaceNumber = 00
bAlternateSetting = 00
bNumEndpoints = 03
bInterface Class:SubClass:Protocol = ff:ff:00
iInterface = 00
Endpoint:
bLength = 7
bDescriptorType = 05
bEndpointAddress = 81 (in)
bmAttributes = 03 (Interrupt)
wMaxPacketSize = 0028
bInterval = 01
Endpoint:
bLength = 7
bDescriptorType = 05
bEndpointAddress = 01 (out)
bmAttributes = 01 (Isochronous)
wMaxPacketSize = 0028
bInterval = 00
Endpoint:
bLength = 7
bDescriptorType = 05
bEndpointAddress = 83 (in)
bmAttributes = 03 (Interrupt)
wMaxPacketSize = 0008
bInterval = 01
CAT /PROC/BUS/USB/DEVICES -after plugged-
===========================================
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=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
T: Bus=01 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 2 Spd=12 MxCh= 0
D: Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=07b0 ProdID=0001 Rev= 0.06
S: Product=ISDN USB TA
S: SerialNumber=Firmware : Rev. 1.01
C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=250mA
I: If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=00 Driver=(none)
E: Ad=81(I) Atr=03(Int.) MxPS= 40 Ivl= 1ms
E: Ad=01(O) Atr=01(Isoc) MxPS= 40 Ivl= 0ms
E: Ad=83(I) Atr=03(Int.) MxPS= 8 Ivl= 1ms
=================================================
Hi,
Did you make the ttyACM devices nodes like as described in
http://www.linux-usb.org/USB-guide/x318.html ?
What are the exact error messages that you get?
However, even after this is done correctly, the acm driver
still won't detect and use your modem (ISDN TA).
Your device doesn't fit the ACM (Abstract Control Model)
of the USB Communications Device Class, and that's
all that the acm driver supports.
~Randy
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