[haiku-bugs] Re: [Haiku] #7635: GoBook IX250 hangs at boot in ps2::init routine.
- From: "siarzhuk" <trac@xxxxxxxxxxxx>
- Date: Sat, 04 Jun 2011 21:20:45 -0000
#7635: GoBook IX250 hangs at boot in ps2::init routine.
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Reporter: siarzhuk | Owner: marcusoverhagen
Type: bug | Status: new
Priority: normal | Milestone: R1
Component: Drivers/Keyboard/PS2 | Version: R1/Development
Resolution: | Keywords:
Blocked By: | Blocking:
Has a Patch: 0 | Platform: x86
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Comment (by siarzhuk):
Just for Info:
it hangs in call ps2_setup_active_multiplexing() [https://dev.haiku-
os.org/browser/haiku/trunk/src/add-
ons/kernel/bus_managers/ps2/ps2_common.cpp#L150] at first call of
ps2_command
{{{
149 static status_t
150 ps2_setup_active_multiplexing(bool *enabled)
151 {
152 status_t res;
153 uint8 in, out;
154
155 out = 0xf0;
156 res = ps2_command(0xd3, &out, 1, &in, 1); //<----- this call
157 if (res)
158 goto fail;
}}}
Hard-coding the multiplexing to "false" and completely disabling call of
ps2_setup_active_multiplexing() workarounds the problem and let internal
keyboard and touchpad on this system work.
Looks like multiplexing detection procedure must be improoved. Note that
#4315 proposes the same "solution" by disabling this setup procedure call.
And, I suspect, the #3594 can be related to this issue too.
--
Ticket URL: <http://dev.haiku-os.org/ticket/7635#comment:3>
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