Opened 10 years ago
Last modified 10 years ago
#11146 closed enhancement
Support EHCI keyboard in KDL. — at Initial Version
Reported by: | pulkomandy | Owned by: | axeld |
---|---|---|---|
Priority: | normal | Milestone: | Unscheduled |
Component: | System/Kernel | Version: | R1/Development |
Keywords: | Cc: | jessicah | |
Blocked By: | Blocking: | ||
Platform: | All |
Description
Until now USB2 (EHCI) used "companion controllers", either UHCI or OHCI, to manage USB1 devices. Not anymore.
Modern hardware uses a "rate managing hub" instead, which basically means the EHCI controller now handles USB1 devices directly. On such machines listusb shows no UHCI/OHCI hubs at all.
This works fine, except in the kernel debugger which currently peeks directly into the UHCI driver to get USB keyboards working. Now we also need to do this with EHCI. Until we do, some people can't use their keyboard in KDL, which is a problem for debugging other issues.
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