Hi,
On Mon, Apr 27, 2009 at 03:18:07PM +0800, chang yao chung wrote:
> Hi all
>
> I want to write a virtual PS/2 mouse driver to hook to the input core,
> after I load the driver
> The psmouse input device driver probes my virtual device as a “Generic
> PS/2 mouse” in /dev/input/mouse1
> And sent a F4 (mouse enable command) to my pseudo device.
>
> I use a user space program to send the following mouse movement packet
> and launch
> gpm –m /dev/input/mouse1 –t ps2
>
> but when I run the user space program , there is no mouse movement event
> occurred,
Do you see any data coming out if you just do a 'cat /dev/input/mouse1'?
Are you positive that mouse1 is bound to your virtual device?
> is there anything wrong with my code using serio_interrupt () ?
>
...
>
> static ssize_t
> write_vms (struct device *dev, struct device_attribute *attr, const char
> *buffer, size_t count)
> {
> int x, y;
> sscanf (buffer, "%x", &x);
You don't read 'y' coordinate and below pass garbage to serio, users
is likely to reject packets that are suspicious.
> serio_interrupt (dev, 0x8, 0 , NULL);
> serio_interrupt (dev, x, NULL);
First question - does it even compile? I don't think so given that you
trying to pass either 3 or 4 arguments to it.
> serio_interrupt (dev, y, 0, NULL);
> serio_interrupt (dev, 0, 0, NULL);
You also need to decide the flavor of PS/2 protocol you are trying to
support. You seem to be aiming for ImPS/2 with 0 4th byte but don't
respond to ImPS/2 probes which will confuse users.
--
Dmitry
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