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93f1a47c4a
linux/drivers/usb/host
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David Brownell 93f1a47c4a USB: add ehci_hcd.ignore_oc parameter 
Certain boards seem to like to issue false overcurrent notifications, for
example on ports that don't have anything connected to them.  This looks
like a hardware error, at the level of noise to those ports' overcurrent
input signals (or non-debounced VBUS comparators).  This surfaces to users
as truly massive amounts of syslog spam from khubd (which is appropriate
for real hardware problems, except for the volume from multiple ports).

Using this new "ignore_oc" flag helps such systems work more sanely, by
preventing such indications from getting to khubd (and spam syslog).  The
downside is of course that true overcurrent errors will be masked; they'll
appear as spontaneous disconnects, without the diagnostics that will let
users troubleshoot issues like short circuited cables.

Note that the bulk of these reports seem to be with VIA southbridges, but
I think some were with Intel ones.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-12-01 14:23:37 -08:00
..
ehci-au1xxx.c USB: Properly unregister reboot notifier in case of failure in ehci hcd 2006-09-27 11:58:54 -07:00
ehci-dbg.c USB: revert EHCI VIA workaround patch 2006-10-17 13:57:18 -07:00
ehci-fsl.c USB: Properly unregister reboot notifier in case of failure in ehci hcd 2006-09-27 11:58:54 -07:00
ehci-fsl.h [PATCH] USB: EHCI for Freescale 83xx 2006-03-20 14:49:55 -08:00
ehci-hcd.c USB: add ehci_hcd.ignore_oc parameter 2006-12-01 14:23:37 -08:00
ehci-hub.c USB: add ehci_hcd.ignore_oc parameter 2006-12-01 14:23:37 -08:00
ehci-mem.c USB: EHCI whitespace fixes (cosmetic) 2006-09-27 11:58:56 -07:00
ehci-pci.c USB: revert EHCI VIA workaround patch 2006-10-17 13:57:18 -07:00
ehci-q.c USB: revert EHCI VIA workaround patch 2006-10-17 13:57:18 -07:00
ehci-sched.c IRQ: Maintain regs pointer globally rather than passing to IRQ handlers 2006-10-05 15:10:12 +01:00
ehci.h USB: revert EHCI VIA workaround patch 2006-10-17 13:57:18 -07:00
hc_crisv10.c IRQ: Maintain regs pointer globally rather than passing to IRQ handlers 2006-10-05 15:10:12 +01:00
hc_crisv10.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
isp116x-hcd.c IRQ: Maintain regs pointer globally rather than passing to IRQ handlers 2006-10-05 15:10:12 +01:00
isp116x.h USB: Dealias -110 code (more complete) 2006-09-27 11:59:00 -07:00
Kconfig USB: u132-hcd: host controller driver for ELAN U132 adapter 2006-09-27 11:58:59 -07:00
Makefile USB: u132-hcd: host controller driver for ELAN U132 adapter 2006-09-27 11:58:59 -07:00
ohci-at91.c USB: ohci-at91, two one-liners 2006-09-27 11:58:57 -07:00
ohci-au1xxx.c USB: Properly unregister reboot notifier in case of failure in ehci hcd 2006-09-27 11:58:54 -07:00
ohci-dbg.c USB: fix __must_check warnings in drivers/usb/host/ 2006-09-27 11:58:58 -07:00
ohci-ep93xx.c USB: Properly unregister reboot notifier in case of failure in ehci hcd 2006-09-27 11:58:54 -07:00
ohci-hcd.c USB: OHCI: disable RHSC inside interrupt handler 2006-12-01 14:23:27 -08:00
ohci-hub.c OHCI: change priority level of resume log message 2006-12-01 14:23:35 -08:00
ohci-lh7a404.c USB: Properly unregister reboot notifier in case of failure in ehci hcd 2006-09-27 11:58:54 -07:00
ohci-mem.c USB: Properly unregister reboot notifier in case of failure in ehci hcd 2006-09-27 11:58:54 -07:00
ohci-omap.c USB: Properly unregister reboot notifier in case of failure in ehci hcd 2006-09-27 11:58:54 -07:00
ohci-pci.c ohci: Use ref-counting hotplug safe interfaces 2006-09-28 15:36:43 -07:00
ohci-pnx4008.c USB: ohci-pnx4008 build fixes 2006-10-17 14:46:30 -07:00
ohci-ppc-soc.c USB: Properly unregister reboot notifier in case of failure in ehci hcd 2006-09-27 11:58:54 -07:00
ohci-pxa27x.c USB: Properly unregister reboot notifier in case of failure in ehci hcd 2006-09-27 11:58:54 -07:00
ohci-q.c [PATCH] ohci: don't play with IRQ regs 2006-10-06 08:53:40 -07:00
ohci-s3c2410.c USB: Properly unregister reboot notifier in case of failure in ehci hcd 2006-09-27 11:58:54 -07:00
ohci-sa1111.c USB: OHCI avoids root hub timer polling 2006-09-27 11:58:48 -07:00
ohci.h OHCI: add auto-stop support 2006-09-28 15:36:46 -07:00
pci-quirks.c [PATCH] USB: Kill compiler warning in quirk_usb_handoff_ohci 2006-07-12 16:03:22 -07:00
pci-quirks.h [PATCH] USB: pci-quirks.c: proper prototypes 2006-04-14 11:12:20 -07:00
sl811_cs.c [PATCH] USB: move hardware-specific <linux/usb_*.h> to <linux/usb/*.h> 2006-06-21 15:04:18 -07:00
sl811-hcd.c IRQ: Maintain regs pointer globally rather than passing to IRQ handlers 2006-10-05 15:10:12 +01:00
sl811.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
u132-hcd.c IRQ: Maintain regs pointer globally rather than passing to IRQ handlers 2006-10-05 15:10:12 +01:00
uhci-debug.c USB: Make file operations structs in drivers/usb const. 2006-09-27 11:58:52 -07:00
uhci-hcd.c UHCI: workaround for Asus motherboard 2006-10-17 14:46:31 -07:00
uhci-hcd.h [PATCH] UHCI: Improve FSBR-off timing 2006-06-21 15:04:16 -07:00
uhci-hub.c IRQ: Maintain regs pointer globally rather than passing to IRQ handlers 2006-10-05 15:10:12 +01:00
uhci-q.c IRQ: Maintain regs pointer globally rather than passing to IRQ handlers 2006-10-05 15:10:12 +01:00