Oliver Neukum <oliver@xxxxxxxxxx> writes:
> Am Mittwoch 25 Februar 2009 05:01:03 schrieb Dmitriy Taychenachev:
>> The Motorola MOTOMAGX phones (Z6, E8, Zn5 so far) are providing
>> combined combined ACM/BLAN USB configuration. Since it has Vendor
>> Specific class, the corresponding drivers (cdc-acm, zaurus) can't find
>> it just by interface info. This patch adds usb id so the cdc-acm
>> driver can properly handle this combined device.
>
> In this case for which interface is cdc-acm called? This
> looks odd. Please post lsusb -v for your device.
>
> Regards
> Oliver
I have attached lsusb output. As i mentioned in patch comment, this
device has enough interfaces for both functions, but it has vendor
specific class. The comment in usb matching subroutine clearly says:
/* The interface class, subclass, and protocol should never be
* checked for a match if the device class is Vendor Specific,
* unless the match record specifies the Vendor ID. */
and this makes sense. So cdc-acm driver will not even get this device
for probing, because device would not be matched by generic interface
pattern.
Bus 002 Device 105: ID 22b8:6425 Motorola PCS
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 255 Vendor Specific Class
bDeviceSubClass 255 Vendor Specific Subclass
bDeviceProtocol 255 Vendor Specific Protocol
bMaxPacketSize0 64
idVendor 0x22b8 Motorola PCS
idProduct 0x6425
bcdDevice 1.01
iManufacturer 3 Motorola Inc.
iProduct 2 Motorola TTY-MDLM/BLAN Network Composite Demo (Class = 0xff)
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 150
bNumInterfaces 3
bConfigurationValue 1
iConfiguration 6 Motorola ACM BLAN Configuration
bmAttributes 0xc0
Self Powered
MaxPower 500mA
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 7 Motorola Communication Interface
CDC Header:
bcdCDC 1.10
CDC Call Management:
bmCapabilities 0x03
call management
use DataInterface
bDataInterface 1
CDC Union:
bMasterInterface 0
bSlaveInterface 1
CDC ACM:
bmCapabilities 0x02
line coding and serial state
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 4
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 10 CDC Data
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0
iInterface 8 Motorola Data Interface
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
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 0x01 EP 1 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 3
bInterfaceClass 2 Communications
bInterfaceSubClass 10 Mobile Direct Line
bInterfaceProtocol 0
iInterface 9 Belcarra USBLAN - MDLM/BLAN
CDC Header:
bcdCDC 1.10
CDC MDLM:
bcdCDC 1.00
bGUID {74f03dbd-1ec1-4470-a367-7134c9f55437}
CDC MDLM detail:
bGuidDescriptorType 01
bDetailData 00 01 00
CDC Ethernet:
iMacAddress 4 000000000000
bmEthernetStatistics 0x00000000
wMaxSegmentSize 1514
wNumberMCFilters 0x0000
bNumberPowerFilters 0
Network Channel Terminal:
bEntityId 0
iName 5 (none)
bChannelIndex 0
bPhysicalInterface 0
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 0x83 EP 3 IN
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 0x84 EP 4 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 1
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 255 Vendor Specific Class
bDeviceSubClass 255 Vendor Specific Subclass
bDeviceProtocol 255 Vendor Specific Protocol
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0000
(Bus Powered)
