Re: Add modem support to (ISDN) Composite Device?

• Subject: Re: Add modem support to (ISDN) Composite Device?
• From: Rene Trost <email@hidden>
• Date: Tue, 20 Mar 2007 03:47:27 +0100
• Delivered-to: email@hidden
• Delivered-to: email@hidden

Hi,

Rene

CFBundleDevelopmentRegion	English
CFBundleExecutable		VendorSpecificDriver
CFBundleIdentifier		com.MySoftwareCompany.iokit.VendorSpecificDriver
CFBundleInfoDictionaryVersion	6.0
CFBundleName
CFBundlePackageType		KEXT
CFBundleSignature		????
CFBundleVersion			1.0.0
IOKitPersonalities
	InterfaceDriver
		CFBundleIdentifier	com.apple.driver.AppleUSBCDCACMControl
		IOClass			AppleUSBCDCACMControl
		IOKitDebug		65535
		IOProviderClass		IOUSBInterface
		bConfigurationValue	1
		bInterfaceClass		255
		bInterfaceNumber	0
		bInterfaceProtocol	255
		bInterfaceSubClass	255
		idProduct		119  (= 0x0077)
		idVendor		2069 (= 0x0815)
OSBundleLibraries
	com.apple.iokit.IOUSBFamily	1.8
	com.apple.kernel.libkern	6.0

Am 19.03.2007 um 21:59 schrieb Rich Kubota:

Rene,

It's not clear to me whether someone else responded to you as I'm having email issue. forcing the device to match as a CDC device is not going to solve the problem since interface 0 is marked as vendor specific. Instead, you want to force Interface 0 to match as a CDC supported interface.

In doing this, there is the assumption that the interface matches the CDC specification. If you look at the mailing list for USB and perform a search on "codeless", you will find several samples referenced.

best wishes.
rich

At 6:12 AM +0100 3/19/07, Rene Trost wrote:

Hello,

I'm working on a software to access and configure an ISDN phone connected via USB. Currently the software accesses the device from user-space with the composite USB driver that's provided by OS X by default (see USB-Probe and IOReg output below), with its own (and somewhat incomplete) AT-Command-Set.
The phone supports the complete AT-Commands-Set (and additional vendor specific commands). So far everything works fine but now I stuck...

I want to make the phone available as modem, as this would make communication with the phone much easier - and it could be used as modem too. I've tried to modify the USBCDC drivers (10.3.9) to match the device but failed (this is my first USB/driver project!).

1. Is there a way to force OS X to match the device with the systems default CDC-Driver instead of the composite one?
2. Or do I need to write my own kernel extension? If so, is there a 10.4.x version of the AppleUSBCDC driver source?
3. The device has 4 interfaces (at least #0 and #1 can be used for AT-Commands), can I attach more than one interface, e.g. one as CDC and the other as composite?

Thank in advance,
Rene Trost

USB-Prober:
Full Speed device @ 4 (0x09130000): ... Composite device: "ISDN Phone T1000"
Device Descriptor
Descriptor Version Number: 0x0110
Device Class: 0 (Composite)
Device Subclass: 0
Device Protocol: 0
Device MaxPacketSize: 8
Device VendorID/ProductID: 0x0815/0x0077 (ISDN Company)
Device Version Number: 0x0100
Number of Configurations: 1
Manufacturer String: 1 "ISDN Company Inc."
Product String: 2 "ISDN Phone T1000"
Serial Number String: 3 "00XXXXXF50"
Configuration Descriptor: ............................... "Standard Konf."
Length (and contents): 213
Number of Interfaces: 1
Configuration Value: 1
Attributes: 0xC0 (self-powered)
MaxPower: 32 ma
Interface #0 - Vendor-specific
Alternate Setting 0
Number of Endpoints 6
Interface Class: 255 (Vendor-specific)
Interface Subclass; 255 (Vendor-specific)
Interface Protocol: 255
Endpoint 0x81 - Interrupt Input
Endpoint 0x02 - Interrupt Output
Endpoint 0x83 - Isochronous Input
Endpoint 0x04 - Isochronous Output
Endpoint 0x85 - Isochronous Input
Endpoint 0x06 - Isochronous Output
Interface #0 - Vendor-specific (#1)
Interface #0 - Vendor-specific (#2)
Interface #0 - Vendor-specific (#3)

IORegistry-Entry:
+-o ISDN Phone T1000@9130000  <class IOUSBDevice>
  +-o IOUSBCompositeDriver  <class IOUSBCompositeDriver>
  +-o ISDN Interface@0  <class IOUSBInterface>
  | +-o IOUSBUserClientInit  <class IOUSBUserClientInit>
  +-o IOUSBUserClientInit  <class IOUSBUserClientInit>

--
Sincerely,
Rich Kubota
email@hidden
(408) 974-6212

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