Lifetouch note – serial console, ac100 image

I’ve managed to get a serial console working with sosboot from the ac100 folks. The display doesn’t work, but you can get a console on the serial port.

photo(7)

In the above image, I’m calling pin 1 the top most pin, when the PCB is installed this is nearest the front of the case.

From the PC perspective (i.e. rx, means PC receving data) the pin signals are as follows:

pin 2: rx
pin 3: tx
pin 4: ground

You can communicate at 115200, 8N1.

You should be able to see a boot message from the Nvidia boot loader (see my previous post). The ac100 kernel from sosboot-r3 also brings up a serial console. I’ve modified sosboot to start the serial on the serial console rather than the display download here: http://41j.com/hackedsosbootr3.img.

That will give you a kernel with serial console but no display/keyboard. The Nvidia kernel (mentioned in previous post) appears to give some display functionality, but no keyboard and no serial port.

Update: Here’s an image with a working display and serial (the original android kernel) it runs a console on the serial port: here

Serial dump

Dmesg/cpuinfo/lsusb

[    0.000000] Initializing cgroup subsys cpuset
[    0.000000] Initializing cgroup subsys cpu
[    0.000000] Linux version 2.6.38.3 (gilles@woody) (gcc version 4.4.5 (Debian 4.4.5-8) ) #4 SMP PREEMPT Thu Jul 21 02:27:22 CEST 2011
[    0.000000] CPU: ARMv7 Processor [411fc090] revision 0 (ARMv7), cr=10c5387f
[    0.000000] CPU: VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] Machine: Toshiba AC100 / Dynabook AZ
[    0.000000] PreMemHdl    0 00000008 1fe76000 00177640 0000000a 
[    0.000000] FRAMEBUFFER    00000018 00010000 00177640 101a880a 01e00320 02010640 00000000 00000007 
[    0.000000] DISPLAY        0000000c 00000000 00000000 00000301 00000006 
[    0.000000] PreMemHdl    1 00000008 1fe61000 00002000 00000016 
[    0.000000] CHIPSHMOO      00000048 00010001 00000000 00000014 00000014 000005ac 000005c0 00000028 000005e8 00000028 00000610 00000018 00000628 0000002c 00010002 c435ae6e 000003f2 00000000 00000000 00000006 
[    0.000000] PreMemHdl    2 00000008 1fe5eff0 00002000 00000005 
[    0.000000] WARMBOOT       00000004 00010002 00000000 
[    0.000000] Memory policy: ECC disabled, Data cache writealloc
[    0.000000] On node 0 totalpages: 98304
[    0.000000] free_area_init_node: node 0, pgdat c06889c0, node_mem_map c0706000
[    0.000000]   Normal zone: 768 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 97536 pages, LIFO batch:31
[    0.000000] Tegra Revision: A03 prime SKU: 8 CPU Process: 1 Core Process: 2 Speedo ID: 1
[    0.000000] Unable to set clock hclk to rate 120000000: -22
[    0.000000] Unable to set clock pclk to rate 60000000: -22
[    0.000000] PERCPU: Embedded 8 pages/cpu @c0a0b000 s8928 r8192 d15648 u32768
[    0.000000] pcpu-alloc: s8928 r8192 d15648 u32768 alloc=8*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 97536
[    0.000000] Kernel command line: mem=384M@0M nvmem=128M@384M vmalloc=256M video=tegrafb console=ttyS0,115200n8 usbcore.old_scheme_first=1 no_console_suspend tegraboot=sdmmc tegrapart=pt:600:80:800,bootloader:680:400:800,fdt:1180:12c00:800,recovery:13d80:a00:800,boot:14800:1000:800,mbr:b80:200:800,system:15880:18000:800,cache:2d900:12c00:800,misc:d80:400:800,staging:40580:1f400:800,userdata:5fa00:35b600:800 
[    0.000000] PID hash table entries: 2048 (order: 1, 8192 bytes)
[    0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
[    0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
[    0.000000] allocated 1966080 bytes of page_cgroup
[    0.000000] please try 'cgroup_disable=memory' option if you don't want memory cgroups
[    0.000000] Memory: 384MB = 384MB total
[    0.000000] Memory: 378208k/378208k available, 15008k reserved, 0K highmem
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
[    0.000000]     DMA     : 0xffc00000 - 0xffe00000   (   2 MB)
[    0.000000]     vmalloc : 0xd8800000 - 0xfe000000   ( 600 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xd8000000   ( 384 MB)
[    0.000000]     modules : 0xbf000000 - 0xc0000000   (  16 MB)
[    0.000000]       .init : 0xc0008000 - 0xc0038000   ( 192 kB)
[    0.000000]       .text : 0xc0038000 - 0xc063d8fc   (6167 kB)
[    0.000000]       .data : 0xc063e000 - 0xc068b0c8   ( 309 kB)
[    0.000000] SLUB: Genslabs=13, HWalign=32, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
[    0.000000] Preemptable hierarchical RCU implementation.
[    0.000000] 	RCU-based detection of stalled CPUs is disabled.
[    0.000000] 	Verbose stalled-CPUs detection is disabled.
[    0.000000] NR_IRQS:448
[    0.000000] sched_clock: 32 bits at 1000kHz, resolution 1000ns, wraps every 4294967ms
[    0.000000] Console: colour dummy device 80x30
[    0.000099] Calibrating delay loop... 1992.29 BogoMIPS (lpj=9961472)
[    0.270040] pid_max: default: 32768 minimum: 301
[    0.270196] Security Framework initialized
[    0.270230] AppArmor: AppArmor initialized
[    0.270299] Mount-cache hash table entries: 512
[    0.270895] Initializing cgroup subsys ns
[    0.270908] ns_cgroup deprecated: consider using the 'clone_children' flag without the ns_cgroup.
[    0.270920] Initializing cgroup subsys cpuacct
[    0.270963] Initializing cgroup subsys memory
[    0.270996] Initializing cgroup subsys devices
[    0.271053] CPU: Testing write buffer coherency: ok
[    0.271201] Calibrating local timer... 249.93MHz, setting to 2.50MHz.
[    0.330074] hw perfevents: enabled with ARMv7 Cortex-A9 PMU driver, 7 counters available
[    0.331060] CPU1: Booted secondary processor
[    0.332881] Brought up 2 CPUs
[    0.332891] SMP: Total of 2 processors activated (2011.59 BogoMIPS).
[    0.333277] devtmpfs: initialized
[    0.335975] print_constraints: dummy: 
[    0.336188] NET: Registered protocol family 16
[    0.336880] host1x bus init
[    0.340470] EMC table: ramd_id: 0, tegra_sku_id 8
[    0.340573] hw-breakpoint: found 6 breakpoint and 1 watchpoint registers.
[    0.340583] hw-breakpoint: 1 breakpoint(s) reserved for watchpoint single-step.
[    0.340602] hw-breakpoint: maximum watchpoint size is 4 bytes.
[    0.340785] tegra_iovmm_register: added iovmm-gart
[    0.349383] bio: create slab <bio-0> at 0
[    0.349906] vgaarb: loaded
[    0.349968] i2c-core: driver [tps6586x] using legacy suspend method
[    0.349977] i2c-core: driver [tps6586x] using legacy resume method
[    0.350193] SCSI subsystem initialized
[    0.350422] usbcore: registered new interface driver usbfs
[    0.350488] usbcore: registered new interface driver hub
[    0.350584] usbcore: registered new device driver usb
[    0.351621] tps6586x 4-0034: VERSIONCRC is 2c
[    0.351838] tps6586x-regulator tps6586x-regulator.0: Probing reulator 0
[    0.352572] print_constraints: REG-SM_0: 725 <--> 1200 mV at 1275 mV fast normal 
[    0.352731] tps6586x-regulator tps6586x-regulator.1: Probing reulator 1
[    0.353467] print_constraints: REG-SM_1: 725 <--> 1200 mV at 1000 mV fast normal 
[    0.353615] tps6586x-regulator tps6586x-regulator.2: Probing reulator 2
[    0.354606] print_constraints: REG-SM_2: 3000 <--> 3700 mV at 3700 mV fast normal 
[    0.354784] tps6586x-regulator tps6586x-regulator.3: Probing reulator 3
[    0.355366] print_constraints: REG-LDO_0: 1250 <--> 3300 mV at 1250 mV fast normal 
[    0.355529] tps6586x-regulator tps6586x-regulator.4: Probing reulator 4
[    0.356505] print_constraints: REG-LDO_1: 725 <--> 1100 mV at 1100 mV fast normal 
[    0.356666] tps6586x-regulator tps6586x-regulator.5: Probing reulator 5
[    0.357248] print_constraints: REG-LDO_2: 725 <--> 1200 mV at 1275 mV fast normal 
[    0.357407] tps6586x-regulator tps6586x-regulator.6: Probing reulator 6
[    0.358243] print_constraints: REG-LDO_3: 1250 <--> 3300 mV at 3300 mV fast normal 
[    0.358421] tps6586x-regulator tps6586x-regulator.7: Probing reulator 7
[    0.359406] print_constraints: REG-LDO_4: 1700 <--> 1800 mV at 1800 mV fast normal 
[    0.359596] tps6586x-regulator tps6586x-regulator.8: Probing reulator 8
[    0.360040] print_constraints: REG-LDO_5: 1250 <--> 2850 mV at 2850 mV fast normal 
[    0.360227] tps6586x-regulator tps6586x-regulator.9: Probing reulator 9
[    0.360809] print_constraints: REG-LDO_6: 1250 <--> 2850 mV at 2850 mV fast normal 
[    0.360986] tps6586x-regulator tps6586x-regulator.10: Probing reulator 10
[    0.361573] print_constraints: REG-LDO_7: 1250 <--> 3300 mV at 3300 mV fast normal 
[    0.361720] tps6586x-regulator tps6586x-regulator.11: Probing reulator 11
[    0.362312] print_constraints: REG-LDO_8: 1250 <--> 1800 mV at 1800 mV fast normal 
[    0.362468] tps6586x-regulator tps6586x-regulator.12: Probing reulator 12
[    0.362876] print_constraints: REG-LDO_9: 1250 <--> 2850 mV at 2850 mV fast normal 
[    0.363575] NetLabel: Initializing
[    0.363583] NetLabel:  domain hash size = 128
[    0.363590] NetLabel:  protocols = UNLABELED CIPSOv4
[    0.363625] NetLabel:  unlabeled traffic allowed by default
[    0.365210] Switching to clocksource timer_us
[    0.365266] Switched to NOHz mode on CPU #0
[    0.365291] Switched to NOHz mode on CPU #1
[    0.373137] AppArmor: AppArmor Filesystem Enabled
[    0.373627] tegra-nvmap tegra-nvmap: created carveout iram (256KiB)
[    0.373744] tegra-nvmap tegra-nvmap: created carveout generic-0 (53248KiB)
[    0.383382] NET: Registered protocol family 2
[    0.383626] IP route cache hash table entries: 4096 (order: 2, 16384 bytes)
[    0.384391] TCP established hash table entries: 16384 (order: 5, 131072 bytes)
[    0.384639] TCP bind hash table entries: 16384 (order: 5, 196608 bytes)
[    0.384926] TCP: Hash tables configured (established 16384 bind 16384)
[    0.384937] TCP reno registered
[    0.384951] UDP hash table entries: 256 (order: 1, 8192 bytes)
[    0.384979] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
[    0.385484] NET: Registered protocol family 1
[    0.385515] PCI: CLS 0 bytes, default 32
[    0.385683] Trying to unpack rootfs image as initramfs...
[    0.413991] Freeing initrd memory: 2340K
[    0.414120] PMU: registered new PMU device of type 0
[    0.415035] audit: initializing netlink socket (disabled)
[    0.415099] type=2000 audit(8.409:1): initialized
[    0.484780] VFS: Disk quotas dquot_6.5.2
[    0.485259] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[    0.487245] NTFS driver 2.1.30 [Flags: R/W].
[    0.487701] NILFS version 2 loaded
[    0.488576] Btrfs loaded
[    0.488597] msgmni has been set to 743
[    0.489644] io scheduler noop registered (default)
[    0.489653] io scheduler deadline registered
[    0.489732] io scheduler cfq registered
[    0.490005] >>> backlight_enable
[    0.490193] regulator avdd_lvds already enabled
[    0.491663] tegra_grhost tegra_grhost: initialized
[    0.491852] host1x: tegradc tegradc
[    0.505327] tegradc tegradc.0: probed
[    0.521629] Console: switching to colour frame buffer device 128x37
[    0.541019] tegradc tegradc.0: probed
[    0.541033] host1x: tegradc tegradc
[    0.541651] nvhdcp: using "always on" policy.
[    0.541948] tegradc tegradc.1: probed
[    0.542228] tegradc tegradc.1: probed
[    0.542681] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[    1.065465] serial8250.0: ttyS0 at MMIO 0x70006000 (irq = 68) is a XScale
[    1.860881] console [ttyS0] enabled
[    2.015405] serial8250.0: ttyS1 at MMIO 0x70006300 (irq = 122) is a XScale
[    2.175407] Initialized tegra uart driver
[    2.180060] brd: module loaded
[    2.183841] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    2.209323] ulpi_phy_power_on: ulpi write failed
[    2.213934] tegra-ehci tegra-ehci.1: Failed to power on the phy
[    2.219870] tegra-ehci: probe of tegra-ehci.1 failed with error -110
[    2.229823] tegra-ehci tegra-ehci.2: Tegra EHCI Host Controller
[    2.235845] tegra-ehci tegra-ehci.2: new USB bus registered, assigned bus number 1
[    2.315272] tegra-ehci tegra-ehci.2: irq 129, io mem 0xc5008000
[    2.335260] tegra-ehci tegra-ehci.2: USB 2.0 started, EHCI 1.00
[    2.341224] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[    2.348013] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    2.355243] usb usb1: Product: Tegra EHCI Host Controller
[    2.360633] usb usb1: Manufacturer: Linux 2.6.38.3 ehci_hcd
[    2.366201] usb usb1: SerialNumber: tegra-ehci.2
[    2.371262] hub 1-0:1.0: USB hub found
[    2.375020] hub 1-0:1.0: 1 port detected
[    2.379237] Initializing USB Mass Storage driver...
[    2.384179] usbcore: registered new interface driver usb-storage
[    2.390186] USB Mass Storage support registered.
[    2.394877] usbcore: registered new interface driver libusual
[    2.400623] NVidia Tegra High-Speed USB SOC Device Controller driver (Apr 20, 2007)
[    2.413851] mousedev: PS/2 mouse device common for all mice
[    2.419868] tps6586x-rtc tps6586x-rtc.0: no IRQ specified, wakeup is disabled
[    2.495426] tps6586x-rtc tps6586x-rtc.0: rtc core: registered tps6586x-rtc as rtc0
[    2.503363] cpuidle: using governor ladder
[    2.507642] cpuidle: using governor menu
[    2.511584] sdhci: Secure Digital Host Controller Interface driver
[    2.517763] sdhci: Copyright(c) Pierre Ossman
[    2.522173] mmc0: Invalid maximum block size, assuming 512 bytes
[    2.528302] Registered led device: mmc0::
[    2.528490] mmc0: SDHCI controller on platform [sdhci-tegra.3] using ADMA
[    2.535426] mmc1: Invalid maximum block size, assuming 512 bytes
[    2.541544] Registered led device: mmc1::
[    2.541668] mmc1: SDHCI controller on platform [sdhci-tegra.0] using ADMA
[    2.548628] Registered led device: wifi-led
[    2.548922] usbcore: registered new interface driver usbhid
[    2.554485] usbhid: USB HID core driver
[    2.619433] mmc0: new high speed MMC card at address 0001
[    2.625319] mmcblk0: mmc0:0001 M8G2EM 7.46 GiB 
[    2.631998] tegrapart_partition: state->bdev->bd_disk->disk_name = mmcblk0
[    2.638876] parse_tegrapart: tegrapart=pt:600:80:800,bootloader:680:400:800,fdt:1180:12c00:800,recovery:13d80:a00:800,boot:14800:1000:800,mbr:b80:200:800,system:15880:18000:800,cache:2d900:12c00:800,misc:d80:400:800,staging:40580:1f400:800,userdata:5fa00:35b600:800
[    2.662344] parse_tegrapart: part #1 [pt] start=26664 size=6144
[    2.668267] parse_tegrapart: part #2 [bootloa] start=26664 size=6656
[    2.674611] parse_tegrapart: part #3 [fdt] start=26664 size=17920
[    2.680704] parse_tegrapart: part #4 [recover] start=26664 size=325120
[    2.687230] parse_tegrapart: part #5 [boot] start=26664 size=335872
[    2.693488] parse_tegrapart: mbr start=-1067759355
[    2.698276] tegra_msdos_parse: mbr_offset=11776
[    2.714089] tegra_msdos_parse: slot 1, start=2048 size=4096
[    2.719686] tegra_msdos_parse: put_partition
[    2.723958] tegra_msdos_parse: slot 2, start=6144 size=307200
[    2.729711] tegra_msdos_parse: put_partition
[    2.733977] tegra_msdos_parse: slot 3, start=313344 size=10240
[    2.739814] tegra_msdos_parse: put_partition
[    2.744080] tegra_msdos_parse: slot 4, start=323584 size=15360576
[    2.750177] tegra_msdos_parse: slot 4 extended partition
[    2.755494]  <
[    2.756984] tegra_msdos_parse_extended: read part sector, start=11776+323584 size=15360576
[    2.767278] tegra_msdos_parse_extended: put_partition 9 start=11776+324096 size=16384
[    2.775113] tegra_msdos_parse_extended: done with this sector
[    2.780885] tegra_msdos_parse_extended: extended part slot 2
[    2.786560] tegra_msdos_parse_extended: read part sector, start=11776+340480 size=393728
[    2.795825] tegra_msdos_parse_extended: put_partition 10 start=11776+340992 size=393216
[    2.803826] tegra_msdos_parse_extended: done with this sector
[    2.809592] tegra_msdos_parse_extended: extended part slot 2
[    2.815264] tegra_msdos_parse_extended: read part sector, start=11776+734208 size=307712
[    2.824549] tegra_msdos_parse_extended: put_partition 11 start=11776+734720 size=307200
[    2.832574] tegra_msdos_parse_extended: done with this sector
[    2.838334] tegra_msdos_parse_extended: extended part slot 2
[    2.843989] tegra_msdos_parse_extended: read part sector, start=11776+1041920 size=512512
[    2.853356] tegra_msdos_parse_extended: put_partition 12 start=11776+1042432 size=512000
[    2.861538] tegra_msdos_parse_extended: done with this sector
[    2.867307] tegra_msdos_parse_extended: extended part slot 2
[    2.872962] tegra_msdos_parse_extended: read part sector, start=11776+1554432 size=14080512
[    2.882509] tegra_msdos_parse_extended: put_partition 13 start=11776+1554944 size=14080000
[    2.890795] tegra_msdos_parse_extended: done with this sector
[    2.896554] tegra_msdos_parse_extended: done
[    2.900819]  >
[    2.902487] tegra_msdos_parse: done
[    2.905983]  mmcblk0: p1 p2 p3 p4 p5 p6 p7 p8 p9 p10 p11 p12 p13
[    4.555294] nvec nvec.2: timeout waiting for sync write to complete
[    4.564287] input: NVEC keyboard as /devices/virtual/input/input0
[    4.570918] Registered led device: nvec-led
[    4.571260] oprofile: using arm/armv7-ca9
[    4.576376] TCP cubic registered
[    4.580691] NET: Registered protocol family 10
[    4.587875] NET: Registered protocol family 17
[    4.592469] Registering the dns_resolver key type
[    4.597229] VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 1
[    4.605020] ThumbEE CPU extension supported.
[    4.609387] Registering SWP/SWPB emulation handler
[    4.621225] registered taskstats version 1
[    4.626035] regulator_init_complete: REG-LDO_6: disabling
[    4.632499] tps6586x-rtc tps6586x-rtc.0: setting system clock to 2009-01-01 22:36:55 UTC (1230849415)
[    4.642054] Freeing init memory: 192K
[    7.555315] nvec nvec.2: timeout waiting for ec transfer
[   12.555292] nvec nvec.2: timeout waiting for ec transfer
[   17.555293] nvec nvec.2: timeout waiting for ec transfer
[   22.555292] nvec nvec.2: timeout waiting for ec transfer
[   27.555295] nvec nvec.2: timeout waiting for ec transfer
[   32.555291] nvec nvec.2: timeout waiting for ec transfer
[   37.555292] nvec nvec.2: timeout waiting for ec transfer
[   42.555296] nvec nvec.2: timeout waiting for ec transfer
[   47.555311] nvec nvec.2: timeout waiting for ec transfer
[   52.555288] nvec nvec.2: timeout waiting for ec transfer
[   57.555291] nvec nvec.2: timeout waiting for ec transfer
[   62.555291] nvec nvec.2: timeout waiting for ec transfer
[   67.555295] nvec nvec.2: timeout waiting for ec transfer
[   72.555291] nvec nvec.2: timeout waiting for ec transfer
[   77.555290] nvec nvec.2: timeout waiting for ec transfer
[   82.555291] nvec nvec.2: timeout waiting for ec transfer
[   87.555291] nvec nvec.2: timeout waiting for ec transfer
[   92.555291] nvec nvec.2: timeout waiting for ec transfer
[   97.555294] nvec nvec.2: timeout waiting for ec transfer
[  102.555292] nvec nvec.2: timeout waiting for ec transfer
[  107.555294] nvec nvec.2: timeout waiting for ec transfer
[  112.555290] nvec nvec.2: timeout waiting for ec transfer
[  117.555294] nvec nvec.2: timeout waiting for ec transfer
[  122.555293] nvec nvec.2: timeout waiting for ec transfer
[  127.555291] nvec nvec.2: timeout waiting for ec transfer
[  132.555314] nvec nvec.2: timeout waiting for ec transfer
[  137.555289] nvec nvec.2: timeout waiting for ec transfer
[  142.555294] nvec nvec.2: timeout waiting for ec transfer
[  147.555298] nvec nvec.2: timeout waiting for ec transfer
[  152.555293] nvec nvec.2: timeout waiting for ec transfer
[  157.555290] nvec nvec.2: timeout waiting for ec transfer
[  162.555289] nvec nvec.2: timeout waiting for ec transfer
[  167.555295] nvec nvec.2: timeout waiting for ec transfer
[  172.555292] nvec nvec.2: timeout waiting for ec transfer
[  177.555290] nvec nvec.2: timeout waiting for ec transfer
[  182.555291] nvec nvec.2: timeout waiting for ec transfer
[  187.555309] nvec nvec.2: timeout waiting for ec transfer
[  192.555292] nvec nvec.2: timeout waiting for ec transfer
[  197.555292] nvec nvec.2: timeout waiting for ec transfer
[  202.555293] nvec nvec.2: timeout waiting for ec transfer
[  207.555292] nvec nvec.2: timeout waiting for ec transfer
[  212.555290] nvec nvec.2: timeout waiting for ec transfer
[  217.555290] nvec nvec.2: timeout waiting for ec transfer
[  222.555290] nvec nvec.2: timeout waiting for ec transfer
[  227.555296] nvec nvec.2: timeout waiting for ec transfer
[  232.555290] nvec nvec.2: timeout waiting for ec transfer
[  237.555291] nvec nvec.2: timeout waiting for ec transfer
[  242.555295] nvec nvec.2: timeout waiting for ec transfer
[  247.555291] nvec nvec.2: timeout waiting for ec transfer
[  252.555292] nvec nvec.2: timeout waiting for ec transfer
[  257.555296] nvec nvec.2: timeout waiting for ec transfer
[  262.555291] nvec nvec.2: timeout waiting for ec transfer
[  267.555291] nvec nvec.2: timeout waiting for ec transfer
[  272.555294] nvec nvec.2: timeout waiting for ec transfer
[  277.555292] nvec nvec.2: timeout waiting for ec transfer
[  282.555292] nvec nvec.2: timeout waiting for ec transfer
[  287.555294] nvec nvec.2: timeout waiting for ec transfer
[  292.555291] nvec nvec.2: timeout waiting for ec transfer
[  297.555291] nvec nvec.2: timeout waiting for ec transfer
[  302.555290] nvec nvec.2: timeout waiting for ec transfer
[  307.555291] nvec nvec.2: timeout waiting for ec transfer
[  312.555294] nvec nvec.2: timeout waiting for ec transfer
[  317.555295] nvec nvec.2: timeout waiting for ec transfer
[  322.555296] nvec nvec.2: timeout waiting for ec transfer
[  327.555290] nvec nvec.2: timeout waiting for ec transfer
[  332.555289] nvec nvec.2: timeout waiting for ec transfer
[  337.555290] nvec nvec.2: timeout waiting for ec transfer
[  342.555291] nvec nvec.2: timeout waiting for ec transfer
[  347.555291] nvec nvec.2: timeout waiting for ec transfer
[  352.555293] nvec nvec.2: timeout waiting for ec transfer
[  357.555291] nvec nvec.2: timeout waiting for ec transfer
[  362.555292] nvec nvec.2: timeout waiting for ec transfer
[  367.555291] nvec nvec.2: timeout waiting for ec transfer
[  372.555291] nvec nvec.2: timeout waiting for ec transfer
[  377.555291] nvec nvec.2: timeout waiting for ec transfer
[  382.555290] nvec nvec.2: timeout waiting for ec transfer
[  387.555293] nvec nvec.2: timeout waiting for ec transfer
[  392.555294] nvec nvec.2: timeout waiting for ec transfer
[  397.555291] nvec nvec.2: timeout waiting for ec transfer
[  402.555293] nvec nvec.2: timeout waiting for ec transfer
[  407.555291] nvec nvec.2: timeout waiting for ec transfer
[  412.555289] nvec nvec.2: timeout waiting for ec transfer
[  417.555293] nvec nvec.2: timeout waiting for ec transfer
[  422.555289] nvec nvec.2: timeout waiting for ec transfer
[  427.555290] nvec nvec.2: timeout waiting for ec transfer
[  432.555292] nvec nvec.2: timeout waiting for ec transfer
[  437.555290] nvec nvec.2: timeout waiting for ec transfer
[  442.555293] nvec nvec.2: timeout waiting for ec transfer
[  447.555292] nvec nvec.2: timeout waiting for ec transfer
[  452.555292] nvec nvec.2: timeout waiting for ec transfer
[  457.555292] nvec nvec.2: timeout waiting for ec transfer
[  462.555291] nvec nvec.2: timeout waiting for ec transfer
[  467.555291] nvec nvec.2: timeout waiting for ec transfer
[  472.555308] nvec nvec.2: timeout waiting for ec transfer
[  477.555291] nvec nvec.2: timeout waiting for ec transfer
[  482.555291] nvec nvec.2: timeout waiting for ec transfer
[  487.555291] nvec nvec.2: timeout waiting for ec transfer
[  492.555291] nvec nvec.2: timeout waiting for ec transfer
[  497.555290] nvec nvec.2: timeout waiting for ec transfer
[  502.555295] nvec nvec.2: timeout waiting for ec transfer
[  507.555292] nvec nvec.2: timeout waiting for ec transfer
[  512.555289] nvec nvec.2: timeout waiting for ec transfer
[  517.555291] nvec nvec.2: timeout waiting for ec transfer
[  522.555291] nvec nvec.2: timeout waiting for ec transfer
[  527.555292] nvec nvec.2: timeout waiting for ec transfer
[  532.555290] nvec nvec.2: timeout waiting for ec transfer
[  537.555290] nvec nvec.2: timeout waiting for ec transfer
[  542.555289] nvec nvec.2: timeout waiting for ec transfer
[  547.555292] nvec nvec.2: timeout waiting for ec transfer
[  552.555290] nvec nvec.2: timeout waiting for ec transfer
[  557.555291] nvec nvec.2: timeout waiting for ec transfer
[  562.555291] nvec nvec.2: timeout waiting for ec transfer
[  567.555295] nvec nvec.2: timeout waiting for ec transfer
[  572.555294] nvec nvec.2: timeout waiting for ec transfer
[  577.555292] nvec nvec.2: timeout waiting for ec transfer
[  582.555291] nvec nvec.2: timeout waiting for ec transfer
[  587.555291] nvec nvec.2: timeout waiting for ec transfer
[  592.555290] nvec nvec.2: timeout waiting for ec transfer
[  597.555290] nvec nvec.2: timeout waiting for ec transfer
[  602.555710] nvec nvec.2: timeout waiting for ec transfer
[  607.554862] nvec nvec.2: timeout waiting for ec transfer
[  612.556315] nvec nvec.2: timeout waiting for ec transfer
[  617.556108] nvec nvec.2: timeout waiting for ec transfer
[  622.554936] nvec nvec.2: timeout waiting for ec transfer
[  627.555975] nvec nvec.2: timeout waiting for ec transfer
[  632.555822] nvec nvec.2: timeout waiting for ec transfer
[  637.555643] nvec nvec.2: timeout waiting for ec transfer
[  642.557033] nvec nvec.2: timeout waiting for ec transfer
[  647.555468] nvec nvec.2: timeout waiting for ec transfer
[  652.556082] nvec nvec.2: timeout waiting for ec transfer
[  657.555886] nvec nvec.2: timeout waiting for ec transfer
[  662.556455] nvec nvec.2: timeout waiting for ec transfer
[  667.556484] nvec nvec.2: timeout waiting for ec transfer
[  672.556487] nvec nvec.2: timeout waiting for ec transfer
[  677.556114] nvec nvec.2: timeout waiting for ec transfer
[  682.555636] nvec nvec.2: timeout waiting for ec transfer
[  687.555930] nvec nvec.2: timeout waiting for ec transfer
[  692.556232] nvec nvec.2: timeout waiting for ec transfer
[  697.556265] nvec nvec.2: timeout waiting for ec transfer
[  702.555626] nvec nvec.2: timeout waiting for ec transfer
[  707.555728] nvec nvec.2: timeout waiting for ec transfer
[  712.557396] nvec nvec.2: timeout waiting for ec transfer
[  717.555185] nvec nvec.2: timeout waiting for ec transfer
[  722.555816] nvec nvec.2: timeout waiting for ec transfer
[  727.556101] nvec nvec.2: timeout waiting for ec transfer
[  732.555779] nvec nvec.2: timeout waiting for ec transfer
[  737.555343] nvec nvec.2: timeout waiting for ec transfer
[  742.555670] nvec nvec.2: timeout waiting for ec transfer
[  747.555381] nvec nvec.2: timeout waiting for ec transfer
[  752.555402] nvec nvec.2: timeout waiting for ec transfer
[  757.556032] nvec nvec.2: timeout waiting for ec transfer
[  762.554762] nvec nvec.2: timeout waiting for ec transfer
[  767.555007] nvec nvec.2: timeout waiting for ec transfer
[  772.555822] nvec nvec.2: timeout waiting for ec transfer
[  777.555762] nvec nvec.2: timeout waiting for ec transfer
[  782.560918] nvec nvec.2: timeout waiting for ec transfer
[  787.559174] nvec nvec.2: timeout waiting for ec transfer
[  792.568210] nvec nvec.2: timeout waiting for ec transfer
[  797.563865] nvec nvec.2: timeout waiting for ec transfer
[  802.569226] nvec nvec.2: timeout waiting for ec transfer
[  807.567204] nvec nvec.2: timeout waiting for ec transfer
[  812.566176] nvec nvec.2: timeout waiting for ec transfer
[  817.578836] nvec nvec.2: timeout waiting for ec transfer
[  822.574822] nvec nvec.2: timeout waiting for ec transfer
[  827.575959] nvec nvec.2: timeout waiting for ec transfer
[  832.579498] nvec nvec.2: timeout waiting for ec transfer
[  837.586241] nvec nvec.2: timeout waiting for ec transfer
[  842.585382] nvec nvec.2: timeout waiting for ec transfer
[  847.585323] nvec nvec.2: timeout waiting for ec transfer
[  852.585467] nvec nvec.2: timeout waiting for ec transfer
[  857.585665] nvec nvec.2: timeout waiting for ec transfer
[  862.586255] nvec nvec.2: timeout waiting for ec transfer
[  867.585434] nvec nvec.2: timeout waiting for ec transfer
[  872.585655] nvec nvec.2: timeout waiting for ec transfer
[  877.585285] nvec nvec.2: timeout waiting for ec transfer
/ # cat /pr/ # cat /proc/[  882.585390] nvec nvec.2: timeout waiting for ec transfer
cpu/ # cat /proc/cpu
cat: read error: Is a directory
/ # / # cat /proc/cpui/ # cat /proc/cpuinfo 
Processor	: ARMv7 Processor rev 0 (v7l)
processor	: 0
BogoMIPS	: 1992.29

processor	: 1
BogoMIPS	: 19.30

Features	: swp half thumb fastmult vfp edsp thumbee vfpv3 vfpv3d16 
CPU implementer	: 0x41
CPU architecture: 7
CPU variant	: 0x1
CPU part	: 0xc09
CPU revision	: 0

Hardware	: Toshiba AC100 / Dynabook AZ
Revision	: 0000
Serial		: 0000000000000000
/ # [  887.585416] nvec nvec.2: timeout waiting for ec transfer
[  892.585535] nvec nvec.2: timeout waiting for ec transfer
lsusb
Bus 001 Device 001: ID 1d6b:0002