Bug#769828: initramfs-tools: usb keyboard nonfunctional in initramfs (break=premount) (MODULES=most)
Package: initramfs-tools
Version: 0.118
Severity: normal
If I set break=premount to drop into the initramfs embedded shell
(I have not tested other values of break=) I see a bunch of error messages
about various USB-related modules not being in modules.dep, and then the
(USB-based) keyboard is completely nonfunctional and the computer has
to be reset using the hardware reset button.
I played around with adding the missing modules to /etc/initramfs-tools/modules
but was not able to find a combination that worked. The closest I got
was with xhci_hcd + usbhid; then I see plausible-looking kernel probe
messages for the USB hub and the keyboard, but after that the keyboard
is still completely nonfunctional.
The keyboard does work just fine in single-user mode, so I presume this is
indeed a problem with necessary modules not getting loaded.
I am using MODULES=most, so this is not the same as #701656.
-- Package-specific info:
-- initramfs sizes
-rw-r--r-- 1 root root 14M Nov 16 15:36 /boot/initrd.img-3.16.0-4-amd64
-- /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-3.16.0-4-amd64 root=UUID=eaf36848-eadc-4138-b2a9-db3d8ce82f34 ro quiet splash nouveau.nofbaccel=1
-- /proc/filesystems
ext3
ext2
ext4
fuseblk
btrfs
-- lsmod
Module Size Used by
cpufreq_userspace 12525 0
cpufreq_conservative 14184 0
cpufreq_powersave 12454 0
cpufreq_stats 12782 0
xt_CHECKSUM 12471 1
iptable_mangle 12536 1
ipt_MASQUERADE 12594 3
iptable_nat 12646 1
nf_nat_ipv4 12912 1 iptable_nat
nf_nat 18241 3 ipt_MASQUERADE,nf_nat_ipv4,iptable_nat
nf_conntrack_ipv4 18448 2
nf_defrag_ipv4 12483 1 nf_conntrack_ipv4
xt_conntrack 12681 1
nf_conntrack 87424 6 ipt_MASQUERADE,nf_nat,nf_nat_ipv4,xt_conntrack,iptable_nat,nf_conntrack_ipv4
ipt_REJECT 12465 2
xt_tcpudp 12527 6
iptable_filter 12536 1
ip_tables 26011 3 iptable_filter,iptable_mangle,iptable_nat
x_tables 27111 8 xt_CHECKSUM,ip_tables,xt_tcpudp,ipt_MASQUERADE,xt_conntrack,iptable_filter,ipt_REJECT,iptable_mangle
bridge 106102 0
stp 12437 1 bridge
llc 12745 2 stp,bridge
cfg80211 405538 0
rfkill 18867 2 cfg80211
binfmt_misc 16949 1
raid0 17001 1
x86_pkg_temp_thermal 12951 0
intel_powerclamp 17159 0
joydev 17063 0
intel_rapl 17356 0
hid_microsoft 12578 0
hid_generic 12393 0
usbhid 44467 0
usb_storage 56215 0
hid 102264 3 hid_generic,hid_microsoft,usbhid
coretemp 12820 0
kvm_intel 139116 0
kvm 388635 1 kvm_intel
crc32_pclmul 12915 0
ghash_clmulni_intel 12978 0
crc32c_generic 12656 0
aesni_intel 151423 0
crc32c_intel 21809 1
md_mod 107672 2 raid0
btrfs 859433 0
xor 21040 1 btrfs
aes_x86_64 16719 1 aesni_intel
raid6_pq 95238 1 btrfs
lrw 12757 1 aesni_intel
gf128mul 12970 1 lrw
glue_helper 12695 1 aesni_intel
sr_mod 21903 0
ablk_helper 12572 1 aesni_intel
cryptd 14516 3 ghash_clmulni_intel,aesni_intel,ablk_helper
igb 171872 0
iTCO_wdt 12831 0
iTCO_vendor_support 12649 1 iTCO_wdt
ipmi_msghandler 39917 0
cdrom 47424 1 sr_mod
ptp 17692 1 igb
pps_core 17225 1 ptp
dca 13168 1 igb
processor 28221 0
battery 13356 0
lpc_ich 20768 0
i2c_i801 16965 0
sg 29973 0
mfd_core 12601 1 lpc_ich
shpchp 31121 0
pcspkr 12595 0
snd_hda_codec_realtek 63031 1
snd_hda_codec_generic 63107 1 snd_hda_codec_realtek
psmouse 98616 0
serio_raw 12849 0
snd_hda_intel 26327 3
evdev 17445 7
snd_hda_controller 26727 1 snd_hda_intel
snd_hda_codec 104463 4 snd_hda_codec_realtek,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller
snd_hwdep 13148 1 snd_hda_codec
snd_pcm 88662 3 snd_hda_codec,snd_hda_intel,snd_hda_controller
snd_timer 26614 1 snd_pcm
tpm_infineon 16844 0
tpm_tis 17182 0
tpm 31511 2 tpm_tis,tpm_infineon
ehci_pci 12512 0
xhci_hcd 148942 0
ehci_hcd 69837 1 ehci_pci
usbcore 195340 5 usb_storage,ehci_hcd,ehci_pci,usbhid,xhci_hcd
snd 65244 13 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_pcm,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel
usb_common 12440 1 usbcore
soundcore 13026 2 snd,snd_hda_codec
fuse 83350 3
autofs4 35529 2
ext4 469572 2
crc16 12343 1 ext4
mbcache 17171 1 ext4
jbd2 82413 1 ext4
dm_mod 89373 0
sd_mod 44356 7
crc_t10dif 12431 1 sd_mod
crct10dif_generic 12581 0
nouveau 1122354 3
mxm_wmi 12515 1 nouveau
ahci 29195 4
wmi 17339 2 mxm_wmi,nouveau
libahci 27158 1 ahci
i2c_algo_bit 12751 2 igb,nouveau
crct10dif_pclmul 13387 1
crct10dif_common 12356 3 crct10dif_pclmul,crct10dif_generic,crc_t10dif
ttm 69670 1 nouveau
libata 177457 2 ahci,libahci
drm_kms_helper 49210 1 nouveau
scsi_mod 191405 5 sg,usb_storage,libata,sd_mod,sr_mod
drm 249955 6 ttm,drm_kms_helper,nouveau
i2c_core 46012 6 drm,igb,i2c_i801,drm_kms_helper,i2c_algo_bit,nouveau
fan 12681 0
thermal 17559 0
video 18030 1 nouveau
thermal_sys 27642 6 fan,video,intel_powerclamp,thermal,processor,x86_pkg_temp_thermal
button 12944 1 nouveau
-- /etc/initramfs-tools/modules
-- /etc/kernel-img.conf
# Kernel image management overrides
# See kernel-img.conf(5) for details
do_symlinks = no
do_bootloader = no
do_initrd = yes
link_in_boot = no
-- /etc/initramfs-tools/initramfs.conf
MODULES=most
BUSYBOX=y
KEYMAP=n
COMPRESS=gzip
DEVICE=
NFSROOT=auto
-- /etc/initramfs-tools/update-initramfs.conf
update_initramfs=yes
backup_initramfs=no
-- /etc/crypttab
# <target name> <source device> <key file> <options>
-- /proc/mdstat
Personalities : [raid0]
md0 : active raid0 sdc1[0] sdb1[1]
976508928 blocks super 1.2 512k chunks
unused devices: <none>
-- /sys/block
md0
sda
sdb
sdc
sdd
sr0
-- mkinitramfs hooks
/etc/initramfs-tools/hooks/:
/usr/share/initramfs-tools/hooks:
busybox
dmsetup
fsck
fuse
intel_microcode
keymap
klibc
kmod
lvm2
mdadm
ntfs_3g
plymouth
resume
thermal
udev
zz-busybox
-- System Information:
Debian Release: jessie/sid
APT prefers unstable
APT policy: (501, 'unstable'), (500, 'testing'), (101, 'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 3.16.0-4-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages initramfs-tools depends on:
ii busybox 1:1.22.0-13
ii cpio 2.11+dfsg-2+b1
ii klibc-utils 2.0.4-2
ii kmod 18-3
ii module-init-tools 18-3
ii udev 215-5+b1
ii util-linux 2.25.2-2
Versions of packages initramfs-tools recommends:
ii busybox 1:1.22.0-13
Versions of packages initramfs-tools suggests:
ii bash-completion 1:2.1-4
-- no debconf information
Bus 004 Device 002: ID 8087:8000 Intel Corp.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 1 Single TT
bMaxPacketSize0 64
idVendor 0x8087 Intel Corp.
idProduct 0x8000
bcdDevice 0.05
iManufacturer 0
iProduct 0
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0 Full speed (or root) hub
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0001 1x 1 bytes
bInterval 12
Hub Descriptor:
bLength 9
bDescriptorType 41
nNbrPorts 6
wHubCharacteristic 0x0009
Per-port power switching
Per-port overcurrent protection
TT think time 8 FS bits
bPwrOn2PwrGood 0 * 2 milli seconds
bHubContrCurrent 0 milli Ampere
DeviceRemovable 0x00
PortPwrCtrlMask 0xff
Hub Port Status:
Port 1: 0000.0100 power
Port 2: 0000.0100 power
Port 3: 0000.0100 power
Port 4: 0000.0100 power
Port 5: 0000.0100 power
Port 6: 0000.0100 power
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 0 Full speed (or root) hub
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0001
Self Powered
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 0 Full speed (or root) hub
bMaxPacketSize0 64
idVendor 0x1d6b Linux Foundation
idProduct 0x0002 2.0 root hub
bcdDevice 3.16
iManufacturer 3 Linux 3.16.0-4-amd64 ehci_hcd
iProduct 2 EHCI Host Controller
iSerial 1 0000:00:1d.0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0 Full speed (or root) hub
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0004 1x 4 bytes
bInterval 12
Hub Descriptor:
bLength 9
bDescriptorType 41
nNbrPorts 2
wHubCharacteristic 0x000a
No power switching (usb 1.0)
Per-port overcurrent protection
bPwrOn2PwrGood 10 * 2 milli seconds
bHubContrCurrent 0 milli Ampere
DeviceRemovable 0x02
PortPwrCtrlMask 0xff
Hub Port Status:
Port 1: 0000.0507 highspeed power suspend enable connect
Port 2: 0000.0100 power
Device Status: 0x0001
Self Powered
Bus 003 Device 002: ID 8087:8008 Intel Corp.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 1 Single TT
bMaxPacketSize0 64
idVendor 0x8087 Intel Corp.
idProduct 0x8008
bcdDevice 0.05
iManufacturer 0
iProduct 0
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0 Full speed (or root) hub
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0001 1x 1 bytes
bInterval 12
Hub Descriptor:
bLength 9
bDescriptorType 41
nNbrPorts 6
wHubCharacteristic 0x0009
Per-port power switching
Per-port overcurrent protection
TT think time 8 FS bits
bPwrOn2PwrGood 0 * 2 milli seconds
bHubContrCurrent 0 milli Ampere
DeviceRemovable 0x00
PortPwrCtrlMask 0xff
Hub Port Status:
Port 1: 0000.0100 power
Port 2: 0000.0100 power
Port 3: 0000.0100 power
Port 4: 0000.0100 power
Port 5: 0000.0100 power
Port 6: 0000.0100 power
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 0 Full speed (or root) hub
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0001
Self Powered
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 0 Full speed (or root) hub
bMaxPacketSize0 64
idVendor 0x1d6b Linux Foundation
idProduct 0x0002 2.0 root hub
bcdDevice 3.16
iManufacturer 3 Linux 3.16.0-4-amd64 ehci_hcd
iProduct 2 EHCI Host Controller
iSerial 1 0000:00:1a.0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0 Full speed (or root) hub
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0004 1x 4 bytes
bInterval 12
Hub Descriptor:
bLength 9
bDescriptorType 41
nNbrPorts 2
wHubCharacteristic 0x000a
No power switching (usb 1.0)
Per-port overcurrent protection
bPwrOn2PwrGood 10 * 2 milli seconds
bHubContrCurrent 0 milli Ampere
DeviceRemovable 0x02
PortPwrCtrlMask 0xff
Hub Port Status:
Port 1: 0000.0507 highspeed power suspend enable connect
Port 2: 0000.0100 power
Device Status: 0x0001
Self Powered
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 3.00
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 3
bMaxPacketSize0 9
idVendor 0x1d6b Linux Foundation
idProduct 0x0003 3.0 root hub
bcdDevice 3.16
iManufacturer 3 Linux 3.16.0-4-amd64 xhci_hcd
iProduct 2 xHCI Host Controller
iSerial 1 0000:00:14.0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 31
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0 Full speed (or root) hub
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0004 1x 4 bytes
bInterval 12
bMaxBurst 0
Hub Descriptor:
bLength 12
bDescriptorType 42
nNbrPorts 6
wHubCharacteristic 0x000a
No power switching (usb 1.0)
Per-port overcurrent protection
bPwrOn2PwrGood 10 * 2 milli seconds
bHubContrCurrent 0 milli Ampere
bHubDecLat 0.0 micro seconds
wHubDelay 0 nano seconds
DeviceRemovable 0x00
Hub Port Status:
Port 1: 0000.02a0 5Gbps power Rx.Detect
Port 2: 0000.02a0 5Gbps power Rx.Detect
Port 3: 0000.02a0 5Gbps power Rx.Detect
Port 4: 0000.02a0 5Gbps power Rx.Detect
Port 5: 0000.02a0 5Gbps power Rx.Detect
Port 6: 0000.02a0 5Gbps power Rx.Detect
Binary Object Store Descriptor:
bLength 5
bDescriptorType 15
wTotalLength 15
bNumDeviceCaps 1
SuperSpeed USB Device Capability:
bLength 10
bDescriptorType 16
bDevCapabilityType 3
bmAttributes 0x02
Latency Tolerance Messages (LTM) Supported
wSpeedsSupported 0x0008
Device can operate at SuperSpeed (5Gbps)
bFunctionalitySupport 3
Lowest fully-functional device speed is SuperSpeed (5Gbps)
bU1DevExitLat 10 micro seconds
bU2DevExitLat 512 micro seconds
Device Status: 0x0001
Self Powered
Bus 001 Device 005: ID 0424:4063 Standard Microsystems Corp.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x0424 Standard Microsystems Corp.
idProduct 0x4063
bcdDevice 1.91
iManufacturer 1 Generic
iProduct 2 Ultra Fast Media Reader
iSerial 3 000000264001
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 32
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 96mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 8 Mass Storage
bInterfaceSubClass 6 SCSI
bInterfaceProtocol 80 Bulk-Only
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0000
(Bus Powered)
Bus 001 Device 003: ID 0424:2640 Standard Microsystems Corp. USB 2.0 Hub
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 1 Single TT
bMaxPacketSize0 64
idVendor 0x0424 Standard Microsystems Corp.
idProduct 0x2640 USB 2.0 Hub
bcdDevice 0.00
iManufacturer 0
iProduct 0
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 2mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0 Full speed (or root) hub
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0001 1x 1 bytes
bInterval 12
Hub Descriptor:
bLength 9
bDescriptorType 41
nNbrPorts 3
wHubCharacteristic 0x000d
Per-port power switching
Compound device
Per-port overcurrent protection
TT think time 8 FS bits
bPwrOn2PwrGood 50 * 2 milli seconds
bHubContrCurrent 1 milli Ampere
DeviceRemovable 0x02
PortPwrCtrlMask 0xff
Hub Port Status:
Port 1: 0000.0503 highspeed power enable connect
Port 2: 0000.0100 power
Port 3: 0000.0100 power
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 0 Full speed (or root) hub
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0001
Self Powered
Bus 001 Device 004: ID 045e:00db Microsoft Corp. Natural Ergonomic Keyboard 4000 V1.0
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x045e Microsoft Corp.
idProduct 0x00db Natural Ergonomic Keyboard 4000 V1.0
bcdDevice 1.73
iManufacturer 1 Microsoft
iProduct 2 Natural® Ergonomic Keyboard 4000
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 59
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 1 Boot Interface Subclass
bInterfaceProtocol 1 Keyboard
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.11
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 60
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 10
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 0 No Subclass
bInterfaceProtocol 0 None
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.11
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 86
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 10
Device Status: 0x0000
(Bus Powered)
Bus 001 Device 002: ID 046d:c018 Logitech, Inc. Optical Wheel Mouse
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x046d Logitech, Inc.
idProduct 0xc018 Optical Wheel Mouse
bcdDevice 43.01
iManufacturer 1 Logitech
iProduct 2 USB Optical Mouse
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 34
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 1 Boot Interface Subclass
bInterfaceProtocol 2 Mouse
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.11
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 52
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0005 1x 5 bytes
bInterval 10
Device Status: 0x0000
(Bus Powered)
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 1 Single TT
bMaxPacketSize0 64
idVendor 0x1d6b Linux Foundation
idProduct 0x0002 2.0 root hub
bcdDevice 3.16
iManufacturer 3 Linux 3.16.0-4-amd64 xhci_hcd
iProduct 2 xHCI Host Controller
iSerial 1 0000:00:14.0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0 Full speed (or root) hub
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0004 1x 4 bytes
bInterval 12
Hub Descriptor:
bLength 11
bDescriptorType 41
nNbrPorts 12
wHubCharacteristic 0x000a
No power switching (usb 1.0)
Per-port overcurrent protection
TT think time 8 FS bits
bPwrOn2PwrGood 10 * 2 milli seconds
bHubContrCurrent 0 milli Ampere
DeviceRemovable 0x00 0x00
PortPwrCtrlMask 0xff 0xff
Hub Port Status:
Port 1: 0000.0303 lowspeed power enable connect
Port 2: 0000.0100 power
Port 3: 0000.0100 power
Port 4: 0000.0100 power
Port 5: 0000.0100 power
Port 6: 0000.0100 power
Port 7: 0000.0100 power
Port 8: 0000.0100 power
Port 9: 0000.0503 highspeed power enable connect
Port 10: 0000.0303 lowspeed power enable connect
Port 11: 0000.0100 power
Port 12: 0000.0100 power
Device Status: 0x0001
Self Powered
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