Codewalker

2014년 1월 28일 화요일

How to connect ODROID to Ubuntu using MTP

http://ppa.webupd8.org/post/43022082410/libmtp-updated-for-ubuntu-quantal-and-precise-with

1. install go-mtpfs and go-mtpfs-unity

http://www.webupd8.org/2012/12/how-to-mount-android-40-ubuntu-go-mtpfs.html

https://launchpad.net/~webupd8team/+archive/unstable/+build/4074768

https://launchpad.net/~webupd8team/+archive/unstable/+build/4074769

https://drive.google.com/file/d/0B5aZmgmqP9rOVGV6aXc5RW8xWkk/edit?usp=sharing
https://drive.google.com/file/d/0B5aZmgmqP9rOblZZWmJENjZQUjg/edit?usp=sharing
https://drive.google.com/file/d/0B5aZmgmqP9rOVjVtSjBTNnNBeDA/edit?usp=sharing

http://almost-a-technocrat.blogspot.kr/2013/01/how-to-connect-samsung-galaxy-nexus-to.html

2. mkdir /media/MyAndroid

3. create /etc/udev/rules.d/99-android.rules

1 # Hardkernel Odroid MTP mode (multimedia device)
2 SUBSYSTEM=="usb", ATTR{idVendor}=="18d1", ATTR{idProduct}=="0002", MODE="0666" # MTP media
3
4 # Hardkernel Odroid MTP mode : automatic mount when plugged (all android versions)
5 ENV{ID_MODEL}=="Odroid", ENV{ID_MODEL_ID}=="0002", ACTION=="add", RUN+="/usr/bin/sudo -b -u codewalker /usr/bin/go-mtpfs -allow-other=true /media/MyAndroid"
6
7 # Hardkernel Odroid MTP mode : automatic unmount when unplugged (all android versions)
8 ENV{ID_MODEL}=="Odroid", ENV{ID_MODEL_ID}=="0002", ACTION=="remove", RUN+="/bin/fusermount -u /media/MyAndroid"

4. sudo service udev restart

5. remove other mtp device

We will release android supported MTP soon.

2014년 1월 24일 금요일

cm(android-4.2.1) on ODROID-U2/U3

eMMC recovery tool for ODROID-U2/U3

http://forum.odroid.com/viewtopic.php?f=53&t=969

How to use.
1. Prepare a microSD card and flash the attached image.
2. Boot with the microSD without eMMC
3. Turn on U2/U3 and wait a few seconds and blue LED will blink.
4. Plug your eMMC module into U2/U3
5. Plug micro-USB cable into U2/U3 and connect other side to your PC USB host or ODROID's USB host port. (This is a trigger to start the recovery)
6. After recovery process (only a few seconds), the blue LED will turn off automatically.
7. Finish. Install OS on your eMMC with as usual.

Install CM for odroid-u2/u3

http://wiki.cyanogenmod.org/w/Install_CM_for_odroidu2

$ sh ./install-emmc.sh /dev/sdX

2013년 12월 22일 일요일

USB vid/pid를 이용해서 장치 연결 상태 알아내기

USB 장치 중에 vid가 0bda이고 pid가 8176인 장치가 연결되어 있는지 알아 보는 방법입니다.

USB node는 /sys/bus/usb/devices/ 에 생성되고 idVendor와 idProuct를 읽어보면 됩니다.

{
DIR *dir = opendir("/sys/bus/usb/devices/");
struct dirent *dent;
if (dir != NULL) {
while ((dent = readdir(dir)) != NULL) {
char node[50] = {'\0',};
sprintf(node, "/sys/bus/usb/devices/%s/idVendor", dent->d_name);
int vid_fd = open(node, O_RDONLY);
char buf[5];
if (vid_fd > 0) {
read(vid_fd, buf, 4);
ALOGE("node = %s, vid = %s", node, buf);
if (strcmp(buf, "0bda") == 0) {
sprintf(node, "/sys/bus/usb/devices/%s/idProduct", dent->d_name);
int pid_fd = open(node, O_RDONLY);
read(pid_fd, buf, 4);
ALOGE("node = %s, pid = %s", node, buf);
if (pid_fd > 0) {
if (strcmp(buf, "8176") == 0) {
//pid가 8176인 장치가 연결되어 있음
break;
}
close(pid_fd);
}
}
close(vid_fd);
}
}
}
close(dir);
}

2013년 12월 11일 수요일

AOSP build and run emulator(Android Virtual Device)

1. Download android source code.

http://source.android.com/source/downloading.html

$ repo init -u https://android.googlesource.com/platform/manifest -b android-4.4_r1.2
$ repo sync

2. Build

$ source build/envsetup.sh
$ lunch
You're building on Linux

Lunch menu... pick a combo:
1. aosp_arm-eng
2. aosp_x86-eng
3. aosp_mips-eng
4. vbox_x86-eng
5. mini_mips-userdebug
6. mini_armv7a_neon-userdebug
7. mini_x86-userdebug
8. aosp_manta-userdebug
9. aosp_grouper-userdebug
10. aosp_flo-userdebug
11. aosp_deb-userdebug
12. aosp_tilapia-userdebug
13. aosp_mako-userdebug
14. aosp_hammerhead-userdebug

Which would you like? [aosp_arm-eng] 1

============================================
PLATFORM_VERSION_CODENAME=REL
PLATFORM_VERSION=4.4
TARGET_PRODUCT=aosp_arm
TARGET_BUILD_VARIANT=eng
TARGET_BUILD_TYPE=release
TARGET_BUILD_APPS=
TARGET_ARCH=arm
TARGET_ARCH_VARIANT=armv7-a
TARGET_CPU_VARIANT=generic
HOST_ARCH=x86
HOST_OS=linux
HOST_OS_EXTRA=Linux-3.11.0-14-generic-x86_64-with-Ubuntu-13.10-saucy
HOST_BUILD_TYPE=release
BUILD_ID=KRT16S
OUT_DIR=out
============================================

[~/projects/android_kitkat]$ make -j8

....

k-r8e/:/opt/toolchains/arm-eabi-4.6/bin/:/opt/toolchains/arm-2010q1/bin:/usr/bin/:/usr/lib/ccache
+ ENABLE_SPARSE_IMAGE=
+ '[' out/target/product/generic/system = -s ']'
+ '[' 6 -ne 5 -a 6 -ne 6 ']'
+ SRC_DIR=out/target/product/generic/system
+ '[' '!' -d out/target/product/generic/system ']'
+ OUTPUT_FILE=out/target/product/generic/obj/PACKAGING/systemimage_intermediates/system.img
+ EXT_VARIANT=ext4
+ MOUNT_POINT=system
+ SIZE=576716800
+ FC=out/target/product/generic/root/file_contexts
+ case $EXT_VARIANT in
+ '[' -z system ']'
+ '[' -z 576716800 ']'
+ '[' -n out/target/product/generic/root/file_contexts ']'
+ FCOPT='-S out/target/product/generic/root/file_contexts'
+ MAKE_EXT4FS_CMD='make_ext4fs -S out/target/product/generic/root/file_contexts -l 576716800 -a system out/target/product/generic/obj/PACKAGING/systemimage_intermediates/system.img out/target/product/generic/system'
+ echo make_ext4fs -S out/target/product/generic/root/file_contexts -l 576716800 -a system out/target/product/generic/obj/PACKAGING/systemimage_intermediates/system.img out/target/product/generic/system
make_ext4fs -S out/target/product/generic/root/file_contexts -l 576716800 -a system out/target/product/generic/obj/PACKAGING/systemimage_intermediates/system.img out/target/product/generic/system
+ make_ext4fs -S out/target/product/generic/root/file_contexts -l 576716800 -a system out/target/product/generic/obj/PACKAGING/systemimage_intermediates/system.img out/target/product/generic/system
Creating filesystem with parameters:
Size: 576716800
Block size: 4096
Blocks per group: 32768
Inodes per group: 7040
Inode size: 256
Journal blocks: 2200
Label:
Blocks: 140800
Block groups: 5
Reserved block group size: 39
Created filesystem with 1262/35200 inodes and 81852/140800 blocks
+ '[' 0 -ne 0 ']'
Install system fs image: out/target/product/generic/system.img
out/target/product/generic/system.img+ maxsize=588791808 blocksize=2112 total=576716800 reserve=5947392
[~/projects/android_kitkat]$

3. Install eclipse and adt
http://developer.android.com/sdk/installing/installing-adt.html

4. Install android sdk
https://developer.android.com/sdk/index.html

5. Android SDK Manager
update API 19