linux-kernel - Re: 2.6.38-rc6: SysRq broken?

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Message-ID: <20110228220447.GB18538@p183.telecom.by>
Date:	Tue, 1 Mar 2011 00:04:47 +0200
From:	Alexey Dobriyan <adobriyan@...il.com>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: 2.6.38-rc6: SysRq broken?

On Mon, Feb 28, 2011 at 01:57:21PM -0800, Dmitry Torokhov wrote:
> On Monday, February 28, 2011 01:40:54 pm Alexey Dobriyan wrote:
> > It just strikes me that SysRq is broken here:
> > Alt+SysRq+h doesn't print anything
> > 
> > CONFIG_MAGIC_SYSRQ=y
> > CONFIG_INPUT_EVDEV=y
> > kernel.sysrq=1
> > echo h >/proc/sysrq-trigger works
> > 
> > Keyboard is USB one, "Logitech HID compliant keyboard".
> 
> What does /proc/bus/input/devices show?

I: Bus=0019 Vendor=0000 Product=0001 Version=0000
N: Name="Power Button"
P: Phys=PNP0C0C/button/input0
S: Sysfs=/devices/LNXSYSTM:00/device:00/PNP0C0C:00/input/input0
U: Uniq=
H: Handlers=kbd event0 
B: PROP=0
B: EV=3
B: KEY=10000000000000 0

I: Bus=0019 Vendor=0000 Product=0001 Version=0000
N: Name="Power Button"
P: Phys=LNXPWRBN/button/input0
S: Sysfs=/devices/LNXSYSTM:00/LNXPWRBN:00/input/input1
U: Uniq=
H: Handlers=kbd event1 
B: PROP=0
B: EV=3
B: KEY=10000000000000 0

I: Bus=0003 Vendor=093a Product=2510 Version=0111
N: Name="PIXART USB OPTICAL MOUSE"
P: Phys=usb-0000:00:1d.0-1.1/input0
S: Sysfs=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.1/2-1.1:1.0/input/input2
U: Uniq=
H: Handlers=mouse0 event2 
B: PROP=0
B: EV=17
B: KEY=70000 0 0 0 0
B: REL=103
B: MSC=10

I: Bus=0003 Vendor=046d Product=c30e Version=0110
N: Name="Logitech HID compliant keyboard"
P: Phys=usb-0000:00:1d.0-1.2/input0
S: Sysfs=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0/input/input3
U: Uniq=
H: Handlers=sysrq kbd event3 
B: PROP=0
B: EV=120013
B: KEY=1000000000007 ff800000000007ff febeffdff3cfffff fffffffffffffffe
B: MSC=10
B: LED=7

I: Bus=0003 Vendor=046d Product=c30e Version=0110
N: Name="Logitech HID compliant keyboard"
P: Phys=usb-0000:00:1d.0-1.2/input1
S: Sysfs=/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.1/input/input4
U: Uniq=
H: Handlers=kbd event4 
B: PROP=0
B: EV=13
B: KEY=fff ffffffffffffffff 2000000 387ad800d001 1e000000000000 0
B: MSC=10

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