Hi Charlie, Charlie Sager wrote: > Device Descriptor: > bLength 18 > bDescriptorType 1 > bcdUSB 1.01 > bDeviceClass 0 (Defined at Interface level) .. > bNumInterfaces 1 . > Interface Descriptor: > bInterfaceClass 3 Human Interface Device > bInterfaceSubClass 0 No Subclass > bInterfaceProtocol 0 None .. > Endpoint Descriptor: > bLength 7 > bDescriptorType 5 > bEndpointAddress 0x81 EP 1 IN > bmAttributes 3 > Transfer Type Interrupt > Synch Type None > Usage Type Data > wMaxPacketSize 0x0008 1x 8 bytes > bInterval 10 > Endpoint Descriptor: > bLength 7 > bDescriptorType 5 > bEndpointAddress 0x02 EP 2 OUT > bmAttributes 3 > Transfer Type Interrupt > Synch Type None > Usage Type Data > wMaxPacketSize 0x0008 1x 8 bytes > bInterval 10 >>> The Scantool software runs under Windows just fine. However, I want >>> to use my laptop which now has Ubuntu 12.04, with wine installed. That does not work. >>> I am able to start the Scantool program under wine, but the software >>> can't communicate with any of comm ports, com1 through com10 >>> (because I get a message telling me this). I don't know where and why you get that message, but it has nothing to do with the actual hardware device that you have in your hand. The USB device abuses the USB HID class, posing as a Human Interface Device, in order to make using the device on old Windows systems as easy as possible, specifically to avoid the need for users to install a device driver. The Scantool program uses a stupid file-like API to exchange bytes with the device on Windows, but WINE doesn't (and can't neccessarily) implement that API with the same user experience. So you can't run Scantool in WINE to communicate with the device. You can analyze the communication using various methods however, and you can develop open source and portable software which communicates with the device, but the Windows software is (partly by definition) not really useful outside a Windows system. If you want to read more about communication with HID class devices from userspace then there's more information at the libusb project: http://libusb.org/wiki/FAQ#CanIcreateadriverlessdeviceusingHIDclass The HIDAPI library mentioned there supports among other things the Linux hidraw API, which is what provides access to your device since you got a new hidraw0 device node in /dev when plugging the device. So by using HIDAPI it would actually be possible to create a similar user experience to that on Windows. That will either have to be done within WINE (that would be a nice and easy project for someone new to WINE development) or in a standalone program which would then replace Scantool completely. Kind regards //Peter -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
