Date: Wed, 6 Jun 2001 15:00:04 -0700 (PDT) From: Peter Wemm <peter@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/dev/usb usb.c usb_port.h Message-ID: <200106062200.f56M04D93538@freefall.freebsd.org>
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peter 2001/06/06 15:00:04 PDT
Modified files:
sys/dev/usb usb.c usb_port.h
Log:
Activate the kthread mechanism for doing usb bus discovery. This means
that device add/remove will work without usbd running. usbd is still
used for execing stuff, but that is all now. Ideally it could be replaced
by a devd some day. Until now, usbd had to be running so that the
USB_DISCOVER ioctl could be called to walk the tree when an attachment
status change was noticed.
Among the changes:
- when a detach happens, remove any pending 'attach' messages or the system
suffers from whiplash from exec moused / kill moused loops if you do lots
of attach/detach and later start usbd.
- tweaks related to kthread differences
- disable the select handler for the old interface (never return success).
I have not removed it yet or old usbd's will abort. That can get removed
later once usbd is cleaned up and things have stabilized for a few weeks.
- get Giant in the kthread.
- a couple of minor potential bug fixes (usb_nevents vs malloc failure etc)
Pre-approved by: n_hibma (ages and ages ago)
Revision Changes Path
1.40 +47 -47 src/sys/dev/usb/usb.c
1.35 +3 -4 src/sys/dev/usb/usb_port.h
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