[haiku-bugs] Re: [Haiku] #8987: ps2: initial setup of command byte failed
- From: "x-ist" <trac@xxxxxxxxxxxx>
- Date: Thu, 27 Sep 2012 07:02:48 -0000
#8987: ps2: initial setup of command byte failed
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Reporter: x-ist | Owner: siarzhuk
Type: bug | Status: new
Priority: normal | Milestone: R1
Component: | Version: R1/Development
Drivers/Keyboard/PS2 | Keywords: ps2 keyboard touchpad OHCI
Resolution: | Blocking:
Blocked By: | Platform: All
Has a Patch: 1 |
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Comment (by x-ist):
In order to get a rough picture of how well OHCI works for different
systems when all interrupts are disabled prior to handover I googled for
"haiku attachment syslog" with a constrained time frame, starting from the
2011-05-15 (date of hrev41513) until now.
The resulting syslogs, despite of their actual problem description, show a
quite clear trend:
Appart from those systems whose syslog contains
{{{
usb ohci: no devices found
}}}
most systems report
{{{
usb ohci -1: smm is in control of the host controller
usb error ohci -1: smm does not respond. resetting...
}}}
Before hrev41513 I didn't find syslogs where "smm does not respond".
Hence I tend to believe that this change pretty much broke OHCI for many
systems.
Unfortunatelly that does not say anything about whether keeping the
ownership change request interrupt enabled would work better.
--
Ticket URL: <http://dev.haiku-os.org/ticket/8987#comment:18>
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