Category: Linux

Android disk size and wear level check

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Use this command to get mount names and origins: df To get block information for data use the command: tune2fs -l /dev/block/mmcblk0p56 (example) If any block does not report “clean” then we can use e2fsck to clean them. To do a check with e2fsck without changing the file system: e2fsck -n /dev/block/mmcblk0p56 (example)

CMake 101

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(From https://stackoverflow.com/questions/31037882/whats-the-cmake-syntax-to-set-and-use-variables) When writing CMake scripts there is a lot you need to know about the syntax and how to use variables in CMake. The Syntax Strings using set(): set(MyString “Some Text”) set(MyStringWithVar “Some other Text: ${MyString}”) set(MyStringWithQuot “Some quote: \”${MyStringWithVar}\””) Or with string(): string(APPEND MyStringWithContent ” ${MyString}”) Lists using set(): set(MyList “a” “b” “c”) set(MyList ${MyList} “d”) Or अतिरिक्त Read More

Android NDK console print C/C++ – Chirag Patel

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When your Android app has C/C++ code using NDK tools and you want printing output to serial port console, here’s the solution. // change sharing first chmod(“/dev/console”, S_IRWXG | S_IRWXO | S_IRWXU); // open file int serialFd = open(“/dev/console”, O_RDWR | O_NONBLOCK | O_NDELAY | O_NOCTTY | O_APPEND); __android_log_print(ANDROID_LOG_DEBUG, “Serial”, “Serial console fd=%d errno=%d(%s)”, serialFd, अतिरिक्त Read More