Author: db

  • Inserting bluetooth usb is not reliable

    Debugging, the diff shows (lines w/ -) which is the port that is the cable on the back: # cd /sys/bus/usb/devices lrwxrwxrwx root root 2013-03-30 18:46 2-1 -> ../../../devices/platform/tcc-ehci/usb2/2-1 lrwxrwxrwx root root 2013-03-30 18:46 2-1:1.0 -> ../../../devices/platform/tcc-ehci/usb2/2-1/2-1:1.0 lrwxrwxrwx root root 2013-03-30 18:46 3-0:1.0 -> ../../../devices/platform/tcc-ohci.0/usb3/3-0:1.0 -lrwxrwxrwx root root 2013-03-30 18:52 3-1 -> ../../../devices/platform/tcc-ohci.0/usb3/3-1 -lrwxrwxrwx root root […]

  • more on bluetooth

    if i do hcitool dev, nothing shows. if i plug in a usb dongle bluetooth, it shows correctly. But interestingly, w/ the dongle in, and i run ‘hcidump’, it sees the on-board bluetooth: Scanning … 00:0D:18:A1:29:2F CAR KIT hciconfig shows no devices w/o the dongle, but does show the dongle when plugged in. with the […]

  • ok rooted, now having some bluetooth issues

    OK, we are now rooted. When i enabled bluetooth it fails, and i see below in the dmesg output. <4>[ 267.400000] [## BT ##] tcc_bt_dev_open <4>[ 267.400000] [## BT ##] tcc_bt_dev_ioctl cmd[60004] arg[1232841404] <4>[ 267.410000] [## BT ##] IOCTL_BT_DEV_POWER cmd[60004] parm1[1] <4>[ 267.410000] [## BT ##] tcc_bt_power_control input[1] <4>[ 267.930000] [## BT ##] tcc_bt_dev_ioctl cmd[60005] […]

  • Default mounts

    $ mount rootfs / rootfs ro,relatime 0 0 tmpfs /dev tmpfs rw,relatime,mode=755 0 0 devpts /dev/pts devpts rw,relatime,mode=600 0 0 proc /proc proc rw,relatime 0 0 sysfs /sys sysfs rw,relatime 0 0 none /acct cgroup rw,relatime,cpuacct 0 0 tmpfs /mnt/asec tmpfs rw,relatime,mode=755,gid=1000 0 0 tmpfs /mnt/obb tmpfs rw,relatime,mode=755,gid=1000 0 0 none /dev/cpuctl cgroup rw,relatime,cpu 0 […]

  • processor is TCC8801

    see attached datasheet TCC8801_CHIP_SPEC_V1.02 # cat cpuinfo Processor : ARMv7 Processor rev 2 (v7l) BogoMIPS : 799.53 Features : swp half thumb fastmult vfp edsp thumbee neon vfpv3 CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x2 CPU part : 0xc08 CPU revision : 2 Hardware : tcc8800 Revision : 0620 Serial : 0000000000000000 […]