4e54f5334e
These patches enable usb autosuspend for the qemu emulated HID devices. This reduces the cpu load for idle guests with a hid device attached because the linux kernel will suspend the usb bus then and qemu can stop running a 1000 Hz to emulate the (active) UHCI controller. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
106 lines
3.2 KiB
Plaintext
106 lines
3.2 KiB
Plaintext
# do not edit this file, it will be overwritten on update
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# Rules to support older kernels, which migth miss functionality needed
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# for the recent udev version.
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#
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# This file is used and maintained by Gentoo.
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ACTION=="remove", GOTO="kernel_compat_end"
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#
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# sysfs timing rules
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#
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# needed for kernels <2.6.30
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SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", WAIT_FOR="descriptors"
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#
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# naming device rules
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#
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# dvb device naming
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# needed for kernels <2.6.29-rc1
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SUBSYSTEM=="dvb", ENV{DVB_ADAPTER_NUM}=="", PROGRAM="/bin/sh -c 'K=%k; K=$${K#dvb}; printf dvb/adapter%%i/%%s $${K%%%%.*} $${K#*.}'", NAME="%c", GROUP="video"
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# naming rules for kernels <2.6.31
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# alsa names
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KERNEL=="controlC[0-9]*", NAME="snd/%k"
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KERNEL=="hwC[D0-9]*", NAME="snd/%k"
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KERNEL=="pcmC[D0-9cp]*", NAME="snd/%k"
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KERNEL=="midiC[D0-9]*", NAME="snd/%k"
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KERNEL=="timer", NAME="snd/%k"
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KERNEL=="seq", NAME="snd/%k"
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KERNEL=="mwave", NAME="modems/mwave"
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KERNEL=="mouse*|mice|event*", NAME="input/%k"
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KERNEL=="ts[0-9]*|uinput", NAME="input/%k"
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KERNEL=="js[0-9]*", NAME="input/%k"
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KERNEL=="card[0-9]*", NAME="dri/%k"
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SUBSYSTEM=="dvb", ENV{DVB_ADAPTER_NUM}=="?*", NAME="dvb/adapter$env{DVB_ADAPTER_NUM}/$env{DVB_DEVICE_TYPE}$env{DVB_DEVICE_NUM}"
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# libusb device nodes
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SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", NAME="bus/usb/$env{BUSNUM}/$env{DEVNUM}"
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# printer
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SUBSYSTEM=="usb", KERNEL=="lp*", NAME="usb/%k"
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# block
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KERNEL=="pktcdvd[0-9]*", NAME="pktcdvd/%k"
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KERNEL=="pktcdvd", NAME="pktcdvd/control"
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KERNEL=="rawctl", NAME="raw/rawctl"
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SUBSYSTEM=="raw", KERNEL=="raw[0-9]*", NAME="raw/%k"
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SUBSYSTEM=="bsg", NAME="bsg/%k"
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SUBSYSTEM=="aoe", NAME="etherd/%k"
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# network
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KERNEL=="tun", NAME="net/%k"
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# CPU
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KERNEL=="cpu[0-9]*", NAME="cpu/%n/cpuid"
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KERNEL=="msr[0-9]*", NAME="cpu/%n/msr"
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KERNEL=="microcode", NAME="cpu/microcode", MODE="0600"
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# miscellaneous
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KERNEL=="auer[0-9]*", NAME="usb/%k"
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KERNEL=="hw_random", NAME="hwrng"
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KERNEL=="sxctl", NAME="specialix_sxctl"
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KERNEL=="rioctl", NAME="specialix_rioctl"
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KERNEL=="iowarrior[0-9]*", NAME="usb/%k"
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KERNEL=="hiddev[0-9]*", NAME="usb/%k"
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KERNEL=="legousbtower[0-9]*", NAME="usb/%k"
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KERNEL=="dabusb[0-9]*", NAME="usb/%k"
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KERNEL=="usbdpfp[0-9]*", NAME="usb/%k"
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KERNEL=="cpad[0-9]*", NAME="usb/%k"
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# end of naming rules for kernel <2.6.31
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#
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# module loading rules
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#
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ACTION!="add", GOTO="kernel_compat_end"
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# No need for more code, as MODALIAS is present
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ENV{MODALIAS}=="?*", GOTO="kernel_compat_end"
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# needed for kernel <2.6.30-rc1
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SUBSYSTEM=="scsi", ATTR{type}=="8", RUN+="/sbin/modprobe -b ch"
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SUBSYSTEM=="mmc", RUN+="/sbin/modprobe -b mmc_block"
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# needed for kernel <2.6.27-rc5
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# acpi will do on newer kernels
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SUBSYSTEM=="pnp", DRIVER!="?*", \
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RUN{ignore_error}+="/bin/sh -c '/sbin/modprobe -a $$(while read id; do echo pnp:d$$id; done < /sys$devpath/id)'"
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# see extras/qemu/42-qemu-usb.rules, version for 2.6.32 + older.
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ACTION=="add", SUBSYSTEM=="usb", ATTR{product}=="QEMU USB Mouse", ATTR{serial}=="42", TEST=="power/level", ATTR{power/level}="auto"
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ACTION=="add", SUBSYSTEM=="usb", ATTR{product}=="QEMU USB Tablet", ATTR{serial}=="42", TEST=="power/level", ATTR{power/level}="auto"
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ACTION=="add", SUBSYSTEM=="usb", ATTR{product}=="QEMU USB Keyboard", ATTR{serial}=="42", TEST=="power/level", ATTR{power/level}="auto"
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LABEL="kernel_compat_end"
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