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SubjectRe: Mac-buttons emulation broken in 2.4.0-test10
Date

Well, it seems I found a solution to my own problem :)

Here are patches that fix the problem.

Doing this, I discovered there are 2 modes to button emulation (3 if you
include no emulation):
Mode 0:
No emulation whatsoever.
Mode 1:
echo "1" > /proc/sys/dev/mac_.../mouse_...
In this mode, when you press on fct-ctrl or fct-alt, then it's like if you
pressed on the corresponding mouse button.
Mode 2:
echo "2" > /proc/sys/dev/mac_.../mouse_...
In this mode, you have to hold down fct-ctrl or fct-alt __and__ click
the mouse to get the corresponding mouse button.

Cheers

Karim

---------------------------------------------------------------------------------------------------
--- linux/drivers/input/keybdev.c Thu Jul 27 21:36:54 2000
+++ linux-2.4.0-test10/drivers/input/keybdev.c Mon Nov 13 08:19:48 2000
@@ -90,7 +90,7 @@
return 0;
}

-#elif defined(CONFIG_ADB_KEYBOARD)
+#elif defined(CONFIG_ADB_KEYBOARD) || defined(CONFIG_MAC_HID)

static unsigned char mac_keycodes[128] =
{ 0, 53, 18, 19, 20, 21, 23, 22, 26, 28, 25, 29, 27, 24, 51, 48,
@@ -129,9 +129,19 @@
}
}

+#ifdef CONFIG_MAC_EMUMOUSEBTN
+extern int mac_hid_mouse_emulate_buttons(int caller, unsigned int keycode, int down);
+#endif
+
void keybdev_event(struct input_handle *handle, unsigned int type, unsigned int code, int down)
{
if (type != EV_KEY) return;
+
+#ifdef CONFIG_MAC_EMUMOUSEBTN
+ /* There should be an if() here to determine whether emulate_raw() is to be called or not.
+ If the key is caught, emulate_raw() should not be called. K.Y. */
+ mac_hid_mouse_emulate_buttons(1, code, down);
+#endif

if (emulate_raw(code, down))
printk(KERN_WARNING "keyboard.c: can't emulate rawmode for keycode %d\n", code);
--- linux/drivers/input/mousedev.c Tue Aug 22 12:06:31 2000
+++ linux-2.4.0-test10/drivers/input/mousedev.c Mon Nov 13 08:25:41 2000
@@ -79,6 +79,10 @@
static struct mousedev *mousedev_table[MOUSEDEV_MINORS];
static struct mousedev mousedev_mix;

+#ifdef CONFIG_MAC_EMUMOUSEBTN
+extern int mac_hid_mouse_emulate_buttons(int caller, unsigned int keycode, int down);
+#endif
+
static void mousedev_event(struct input_handle *handle, unsigned int type, unsigned int code, int value)
{
struct mousedev *mousedevs[3] = { handle->private, &mousedev_mix, NULL };
@@ -132,6 +136,9 @@
case BTN_MIDDLE: index = 2; break;
default: return;
}
+#ifdef CONFIG_MAC_EMUMOUSEBTN
+ index = mac_hid_mouse_emulate_buttons(2, index, 0);
+#endif
switch (value) {
case 0: clear_bit(index, &list->buttons); break;
case 1: set_bit(index, &list->buttons); break;
---------------------------------------------------------------------------------------------------
Karim Yaghmour wrote:
>
> The mac_hid_mouse_emulate_buttons() in drivers/macintosh/mac_hid.c
> which takes care of emulating multiple buttons on a mac doesn't
> seem to be used anywhere. In fact, by doing a "grep -r mac_hid... *"
> in the kernel's base directory yields only one result and it's
> the one in mac_hid.c. Shouldn't this be called upon from the
> keyboard and mouse handlers?
>

===================================================
Karim Yaghmour
karym@opersys.com
Operating System Consultant
(Linux kernel, real-time and distributed systems)
===================================================
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