New mousedev device!

New mousedev device!

[Freeze]

Hi,
   I have a new device that could work with th input/mousedev driver. It is a 
thrust graic tablet. But it's recognized as a relative mouse, but I'd like to 
told the mousedev that it is an absolute device.

   In the hotplug device description, what is the number position that is 
used for the driver option.

Thanks,
Freeze
---
Here is an extract of the mousedev.c code: I mean, can i change the 
dev->evbit by changing the hotplug description of my device in the file 
/etc/hotplug/usb.distmap?
---
static struct input_handle *mousedev_connect(struct input_handler *handler, 
struct input_dev *dev)
{
	struct mousedev *mousedev;
	int minor = 0;

	if (!test_bit(EV_KEY, dev->evbit) ||
	   (!test_bit(BTN_LEFT, dev->keybit) && !test_bit(BTN_TOUCH, dev->keybit)))
		return NULL;

	if ((!test_bit(EV_REL, dev->evbit) || !test_bit(REL_X, dev->relbit)) &&
	    (!test_bit(EV_ABS, dev->evbit) || !test_bit(ABS_X, dev->absbit)))
		return NULL;


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Re: New mousedev device!

[Brad Hards]

On Fri, 5 Jul 2002 00:03, Freeze wrote:
> Hi,
>    I have a new device that could work with th input/mousedev driver. It is
> a thrust graic tablet. But it's recognized as a relative mouse, but I'd
> like to told the mousedev that it is an absolute device.
/dev/input/mouseX and /dev/input/mice are inherently relative. The code that 
you provided basically shows that mousedev.o only tries to associate with 
input devices that have relative axes, and devices that have absolute X and Y 
axes - ie mice and touchpads. The output is always relative.

Two options:
1. Use the event output driver, and manage the absolute output in userspace 
(eg using a X driver attached to /dev/input/eventX). There is some code in 
the Linuxconsole CVS, I think.
2. Use the touchpad output driver (only in linuxconsole CVS). Seen it, not 
looked in detail or used it.

Brad

-- 
http://conf.linux.org.au. 22-25Jan2003. Perth, Australia. Birds in Black.


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