Bug#348739: kernel-image-2.6-686: [module cdc-acm] ELSA Microlink 56 K USB does not attach to any device under /dev/
Package: kernel-image-2.6-686
Severity: normal
-- System Information:
Debian Release: 3.1
Architecture: i386 (i686)
Kernel: Linux 2.6.8-2-686
Locale: LANG=de_DE, LC_CTYPE=de_DE (charmap=ISO-8859-15)
ELSA Microlink 56 K USB Modem: when I plug in te modem, the logs say:
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| Jan 18 19:26:51 crystalline usb.agent[22170]: cdc-acm: loaded successfully
| Jan 18 19:26:51 crystalline kernel: drivers/usb/class/cdc-acm.c: Ignoring extra header
| Jan 18 19:26:51 crystalline kernel: usbcore: registered new driver cdc_acm
| Jan 18 19:26:51 crystalline kernel: drivers/usb/class/cdc-acm.c: v0.23:USB Abstract Control Model driver for USB modems and ISDN adapters
`----
I suypected the driver to attach to /dev/ttyUSB0 as it does under a
2.4.x kernel but it did not.
Other USB-Devices (as my soundcard) do work.
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| [19:38:38][niehaus@crystalline:~]$ lsusb
| Bus 004 Device 001: ID 0000:0000
| Bus 003 Device 001: ID 0000:0000
| Bus 002 Device 003: ID 05cc:2265 ELSA AG MicroLink 56k
| Bus 002 Device 001: ID 0000:0000
| Bus 001 Device 001: ID 0000:0000
`----
,----
| [19:38:45][niehaus@crystalline:~]$ lsusb -v -d 05cc:2265
| Bus 002 Device 003: ID 05cc:2265 ELSA AG MicroLink 56k
| Device Descriptor:
| bLength 18
| bDescriptorType 1
| bcdUSB 1.00
| bDeviceClass 2 Communications
| bDeviceSubClass 0
| bDeviceProtocol 0
| bMaxPacketSize0 8
| idVendor 0x05cc ELSA AG
| idProduct 0x2265 MicroLink 56k
| bcdDevice 1.00
| iManufacturer 1
| iProduct 2
| iSerial 0
| bNumConfigurations 2
| Configuration Descriptor:
| bLength 9
| bDescriptorType 2
| wTotalLength 41
| bNumInterfaces 2
| bConfigurationValue 1
| iConfiguration 3
| bmAttributes 0xa0
| Remote Wakeup
| MaxPower 400mA
| Interface Descriptor:
| bLength 9
| bDescriptorType 4
| bInterfaceNumber 0
| bAlternateSetting 0
| bNumEndpoints 0
| bInterfaceClass 255 Vendor Specific Class
| bInterfaceSubClass 255 Vendor Specific Subclass
| bInterfaceProtocol 255 Vendor Specific Protocol
| iInterface 4
| Interface Descriptor:
| bLength 9
| bDescriptorType 4
| bInterfaceNumber 1
| bAlternateSetting 0
| bNumEndpoints 2
| bInterfaceClass 255 Vendor Specific Class
| bInterfaceSubClass 255 Vendor Specific Subclass
| bInterfaceProtocol 255 Vendor Specific Protocol
| iInterface 5
| Endpoint Descriptor:
| bLength 7
| bDescriptorType 5
| bEndpointAddress 0x02 EP 2 OUT
| bmAttributes 2
| Transfer Type Bulk
| Synch Type None
| Usage Type Data
| wMaxPacketSize 0x0010 1x 16 bytes
| bInterval 0
| Endpoint Descriptor:
| bLength 7
| bDescriptorType 5
| bEndpointAddress 0x84 EP 4 IN
| bmAttributes 3
| Transfer Type Interrupt
| Synch Type None
| Usage Type Data
| wMaxPacketSize 0x003f 1x 63 bytes
| bInterval 2
| Configuration Descriptor:
| bLength 9
| bDescriptorType 2
| wTotalLength 62
| bNumInterfaces 2
| bConfigurationValue 2
| iConfiguration 6
| bmAttributes 0xa0
| Remote Wakeup
| MaxPower 400mA
| Interface Descriptor:
| bLength 9
| bDescriptorType 4
| bInterfaceNumber 0
| bAlternateSetting 0
| bNumEndpoints 1
| bInterfaceClass 2 Communications
| bInterfaceSubClass 2 Abstract (modem)
| bInterfaceProtocol 1 AT-commands (v.25ter)
| iInterface 4
| CDC Header:
| bcdCDC 0.01
| CDC Call Management:
| bmCapabilities 0x03
| call management
| use DataInterface
| bDataInterface 1
| CDC ACM:
| bmCapabilities 0x07
| sends break
| line coding and serial state
| get/set/clear comm features
| Endpoint Descriptor:
| bLength 7
| bDescriptorType 5
| bEndpointAddress 0x84 EP 4 IN
| bmAttributes 3
| Transfer Type Interrupt
| Synch Type None
| Usage Type Data
| wMaxPacketSize 0x0020 1x 32 bytes
| bInterval 128
| Interface Descriptor:
| bLength 9
| bDescriptorType 4
| bInterfaceNumber 1
| bAlternateSetting 0
| bNumEndpoints 2
| bInterfaceClass 10 Data
| bInterfaceSubClass 2
| bInterfaceProtocol 1
| iInterface 5
| Endpoint Descriptor:
| bLength 7
| bDescriptorType 5
| bEndpointAddress 0x02 EP 2 OUT
| bmAttributes 2
| Transfer Type Bulk
| Synch Type None
| Usage Type Data
| wMaxPacketSize 0x0040 1x 64 bytes
| bInterval 0
| Endpoint Descriptor:
| bLength 7
| bDescriptorType 5
| bEndpointAddress 0x86 EP 6 IN
| bmAttributes 2
| Transfer Type Bulk
| Synch Type None
| Usage Type Data
| wMaxPacketSize 0x0040 1x 64 bytes
| bInterval 0
`----
Thanks,
Sebastian
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