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[Resolved] How can I use libugpio.so library?

  • M

    Good day, all. Last time I encountered with GPIO problems. I think all of C/C++ coders wants to use simple mechanism to GPIO manipulation. The second reason is using this library because it has poll-ed fuction to make pseudo-async events for our application. As I know we don't have any gpio drivers to use real hardware gpio interrupts with asynchronous dev-file operations.

    I know that library libugpio.so is already installed in Onion OS in the /usr/lib/. It's compiled version mhei/libugpio, created by Michael Heimpold.

    But I can't find any .h-file of it, also the development package (named libugpio-dev) is not avalable in the repository.

    Unfortunately I can't use it as dynamicaly loaded because this version not export any symbols, the commands nm, readelf, objdump don't find any exported symbols in and any other one in the path /usr/lib.

    But if you open the file in a simple viewer you can find the text name of all the functions same as ugpio.h that can be found in the repository mhei/libugpio,

    If anyone has used this library, please tell can I use.

    0
  • C

    @Modest-Polykarpovich take a look at the onion github https://github.com/OnionIoT
    Take a look at all the stuff available for gpio work in C

    0
  • M

    Many thanks all, I've figure out on it! The format of libugpio.so is corrupted for a my version of GCC.

    How to fix it and same one is below:

    1. First, it's posible only in cross-compiling machine (see official documentation). I'm using OpenWRT SDK Toolchain (it's compiled toolchain for MIPS MT76x8) on Debian CLI Virtual Machine. See more details here and here.

    2. Second. You must have right configuration of the feeds.config.default (the file at top path of SDK). My configuration is below:

    src-git base https://github.com/openwrt/openwrt.git;v18.06.4
src-git packages https://github.com/openwrt/packages.git;openwrt-18.06
src-git onion https://github.com/OnionIoT/OpenWRT-Packages
src-link omega2_kmods /home/vladimir/My_kmods
#src-git luci https://git.openwrt.org/project/luci.git^4d6d8bc5b0d7ee71c7b29b12e7e0c2e1e86cb268
#src-git routing https://git.openwrt.org/feed/routing.git^bb156bf355b54236a52279522fabbec1e8dd7043
#src-git telephony https://git.openwrt.org/feed/telephony.git^507eabe1b60458ceb1a535aec9d12c8be95706f0

    Look at the second line of my file:

    src-git packages https://github.com/openwrt/packages.git;openwrt-18.06

    I'm using GitHub Mirrow of The OpenWRT sources because Russian provider has banned resource https://git.openwrt.org. And I'm using named branch openwrt-18.06 because Onion OS has based on its.

    1. Third you must enter next commands below for download metafiles, sources, take configuration and compile our or another library (package).

    3a) We are updating packages metadata from repository (see second line of feeds.config.default😞

    myname@debian-cli:~/OpenWRT_sdk$ ./scripts/feeds update packages

    3b) Next, let's install libugpio package in the our SDK.

    myname@debian-cli:~/OpenWRT_sdk$ ./scripts/feeds install libugpio

    3c) Next, we have to download sources, configure and compile package:

    myname@debian-cli:~/OpenWRT_sdk$ make package/libugpio/download
...
myname@debian-cli:~/OpenWRT_sdk$ make package/libugpio/prepare
...
myname@debian-cli:~/OpenWRT_sdk$ make package/libugpio/compile
    1. Now we can try to find our files that we need to use in our own C/Π‘++ project:
    myname@debian-cli:~$ find ./OpenWRT-sdk -type f -name "*ugpio.*"
./OpenWRT-sdk/build_dir/target-mipsel_24kc_musl/libugpio-0.0.6/.pkgdir/libugpio.installed
./OpenWRT-sdk/build_dir/target-mipsel_24kc_musl/libugpio-0.0.6/.pkgdir/libugpio/usr/lib/libugpio.so.1.0.0
./OpenWRT-sdk/staging_dir/target-mipsel_24kc_musl/pkginfo/libugpio.provides
./OpenWRT-sdk/staging_dir/target-mipsel_24kc_musl/root-ramips/usr/lib/libugpio.so.1.0.0
./OpenWRT-sdk/staging_dir/target-mipsel_24kc_musl/usr/include/ugpio/ugpio.h
./OpenWRT-sdk/staging_dir/target-mipsel_24kc_musl/usr/lib/pkgconfig/libugpio.pc
./OpenWRT-sdk/staging_dir/target-mipsel_24kc_musl/usr/lib/libugpio.a
./OpenWRT-sdk/staging_dir/target-mipsel_24kc_musl/usr/lib/libugpio.so.1.0.0
./OpenWRT-sdk/staging_dir/target-mipsel_24kc_musl/packages/libugpio.list

    We see the next files:
    ugpio.h, libugpio.a, libugpio.so.1.0.0 (it's acronym of libugpio.so. You must rename it if will use).
    Also you will need file ugpio-version.h that you can find with ugpio.h in the same directory.

    1. Last. Copy these files in your project and use CFLAGS -L<path> and -l<libname without prefix *lib* and *extension*> for a GCC linker.

    By the way: static and dynamic linkage:

    1. If you put .so file in your project dir, your application will use shared object from LIB-path (/usr/lib/libugpio.so that has incorrect symbols format but normal works).
    2. If you put static library .a file your application will use static library and .so file no need.

    And the end. My compiled version of libugpio.so has normal format and all symbols you can see by next unitilies: nm, readelf, objdump. See example:

    myname@debian-cli:~/OpenWRT-sdk/staging_dir/target-mipsel_24kc_musl/usr/lib$
readelf -s ./libugpio.so.1

Π’Π°Π±Π»ΠΈΡ†Π° символов Β«.dynsymΒ» содСрТит 71 элСмСнт:
   Чис:    Π—Π½Π°Ρ‡   Π Π°Π·ΠΌ Π’ΠΈΠΏ     Бвяз   Vis      ИндСкс ΠΈΠΌΠ΅Π½ΠΈ
     0: 00000000     0 NOTYPE  LOCAL  DEFAULT  UND
     1: 00000ccc     0 SECTION LOCAL  DEFAULT   10
     2: 00001331   104 FUNC    GLOBAL DEFAULT   11 ugpio_direction_output
     3: 00013000     0 NOTYPE  GLOBAL DEFAULT   19 _fdata
     4: 00001651    64 FUNC    GLOBAL DEFAULT   11 gpio_set_activelow
     5: 0001aff0     0 SECTION GLOBAL DEFAULT  ABS _gp_disp
     6: 000013c9    36 FUNC    GLOBAL DEFAULT   11 ugpio_set_edge
     7: 00001719    54 FUNC    GLOBAL DEFAULT   11 gpio_free_array
     8: 00001611    64 FUNC    GLOBAL DEFAULT   11 gpio_get_activelow
     9: 00001255    68 FUNC    GLOBAL DEFAULT   11 ugpio_set_activelow
    10: 00000e51   240 FUNC    GLOBAL DEFAULT   11 ugpio_request
    11: 000012a5    62 FUNC    GLOBAL DEFAULT   11 ugpio_get_direction
    12: 00000ccc     8 FUNC    GLOBAL DEFAULT   10 _init
    13: 000013a5    36 FUNC    GLOBAL DEFAULT   11 ugpio_get_edge
    14: 00000d30     0 NOTYPE  GLOBAL DEFAULT   11 _ftext
    15: 000016d9    64 FUNC    GLOBAL DEFAULT   11 gpio_set_value
    16: 00000f41   136 FUNC    GLOBAL DEFAULT   11 ugpio_request_one
    17: 000012e5    74 FUNC    GLOBAL DEFAULT   11 ugpio_direction_input
    18: 00001299    10 FUNC    GLOBAL DEFAULT   11 ugpio_alterable_direction
    19: 00001195     4 FUNC    GLOBAL DEFAULT   11 ugpio_fd
    20: 000130bc     0 NOTYPE  GLOBAL DEFAULT   21 __bss_start
    21: 00001691    72 FUNC    GLOBAL DEFAULT   11 gpio_get_value
    22: 00001f60     8 FUNC    GLOBAL DEFAULT   13 _fini
    23: 0000121d    56 FUNC    GLOBAL DEFAULT   11 ugpio_get_activelow
    24: 00001399    10 FUNC    GLOBAL DEFAULT   11 ugpio_alterable_edge
    25: 000011d9    68 FUNC    GLOBAL DEFAULT   11 ugpio_set_value
    26: 000130bc     0 NOTYPE  GLOBAL DEFAULT   20 _edata
    27: 000130e0     0 NOTYPE  GLOBAL DEFAULT   21 _end
    28: 00001119   124 FUNC    GLOBAL DEFAULT   11 ugpio_close
    29: 00001051   200 FUNC    GLOBAL DEFAULT   11 ugpio_full_open
    30: 00001895   100 FUNC    GLOBAL DEFAULT   11 gpio_request_array
    31: 00001199    64 FUNC    GLOBAL DEFAULT   11 ugpio_get_value
    32: 00000fc9    62 FUNC    GLOBAL DEFAULT   11 ugpio_free
    33: 000130bc     0 NOTYPE  GLOBAL DEFAULT   21 _fbss
    34: 00001f40     0 FUNC    GLOBAL DEFAULT  UND free
    35: 00001f30     0 FUNC    GLOBAL DEFAULT  UND close
    36: 00001a91   128 FUNC    GLOBAL DEFAULT   11 gpio_fd_write
    37: 00001f20     0 FUNC    GLOBAL DEFAULT  UND open
    38: 00001f10     0 FUNC    GLOBAL DEFAULT  UND strlen
    39: 00001bb5   120 FUNC    GLOBAL DEFAULT   11 gpio_fd_set_edge
    40: 00001951   124 FUNC    GLOBAL DEFAULT   11 gpio_fd_open
    41: 00001f00     0 FUNC    GLOBAL DEFAULT  UND __errno_location
    42: 000018f9    88 FUNC    GLOBAL DEFAULT   11 gpio_get_edge
    43: 0000141d   124 FUNC    GLOBAL DEFAULT   11 gpio_request
    44: 00001751    42 FUNC    GLOBAL DEFAULT   11 gpio_alterable_edge
    45: 0000177d    92 FUNC    GLOBAL DEFAULT   11 gpio_set_edge
    46: 000017d9   188 FUNC    GLOBAL DEFAULT   11 gpio_request_one
    47: 00001589    52 FUNC    GLOBAL DEFAULT   11 gpio_direction_input
    48: 000015bd    84 FUNC    GLOBAL DEFAULT   11 gpio_direction_output
    49: 00001ef0     0 FUNC    GLOBAL DEFAULT  UND strncmp
    50: 00001b11   164 FUNC    GLOBAL DEFAULT   11 gpio_fd_get_edge
    51: 00001ee0     0 FUNC    GLOBAL DEFAULT  UND read
    52: 00001009    72 FUNC    GLOBAL DEFAULT   11 ugpio_open
    53: 00001541    70 FUNC    GLOBAL DEFAULT   11 gpio_get_direction
    54: 00001ed0     0 FUNC    GLOBAL DEFAULT  UND write
    55: 00000000     0 FUNC    WEAK   DEFAULT  UND __deregister_frame_info@GLIBC_2.0 (2)
    56: 00001ec0     0 FUNC    GLOBAL DEFAULT  UND __stack_chk_fail
    57: 00001eb0     0 FUNC    GLOBAL DEFAULT  UND lseek
    58: 00001ea0     0 FUNC    GLOBAL DEFAULT  UND malloc
    59: 00001499   124 FUNC    GLOBAL DEFAULT   11 gpio_free
    60: 00000000     0 FUNC    WEAK   DEFAULT  UND __cxa_finalize
    61: 00001ce9   184 FUNC    GLOBAL DEFAULT   11 gpio_write
    62: 00001da1   144 FUNC    GLOBAL DEFAULT   11 gpio_check
    63: 00001515    42 FUNC    GLOBAL DEFAULT   11 gpio_alterable_direction
    64: 00000000     0 FUNC    WEAK   DEFAULT  UND __register_frame_info@GLIBC_2.0 (2)
    65: 000019cd    34 FUNC    GLOBAL DEFAULT   11 gpio_fd_close
    66: 00001c2d   188 FUNC    GLOBAL DEFAULT   11 gpio_read
    67: 00000000     0 OBJECT  GLOBAL DEFAULT  UND __stack_chk_guard
    68: 000013f1    42 FUNC    GLOBAL DEFAULT   11 gpio_is_requested
    69: 00001e90     0 FUNC    GLOBAL DEFAULT  UND snprintf
    70: 000019f1   160 FUNC    GLOBAL DEFAULT   11 gpio_fd_read

Π’Π°Π±Π»ΠΈΡ†Π° символов Β«.symtabΒ» содСрТит 137 элСмСнтов:
   Чис:    Π—Π½Π°Ρ‡   Π Π°Π·ΠΌ Π’ΠΈΠΏ     Бвяз   Vis      ИндСкс ΠΈΠΌΠ΅Π½ΠΈ
     0: 00000000     0 NOTYPE  LOCAL  DEFAULT  UND
     1: 00000138     0 SECTION LOCAL  DEFAULT    1
     2: 00000150     0 SECTION LOCAL  DEFAULT    2
     3: 00000168     0 SECTION LOCAL  DEFAULT    3
     4: 00000268     0 SECTION LOCAL  DEFAULT    4
     5: 00000498     0 SECTION LOCAL  DEFAULT    5
     6: 00000908     0 SECTION LOCAL  DEFAULT    6
     7: 00000bec     0 SECTION LOCAL  DEFAULT    7
     8: 00000c7c     0 SECTION LOCAL  DEFAULT    8
     9: 00000c9c     0 SECTION LOCAL  DEFAULT    9
    10: 00000ccc     0 SECTION LOCAL  DEFAULT   10
    11: 00000d30     0 SECTION LOCAL  DEFAULT   11
    12: 00001e90     0 SECTION LOCAL  DEFAULT   12
    13: 00001f60     0 SECTION LOCAL  DEFAULT   13
    14: 00001fa0     0 SECTION LOCAL  DEFAULT   14
    15: 00002094     0 SECTION LOCAL  DEFAULT   15
    16: 00012fd0     0 SECTION LOCAL  DEFAULT   16
    17: 00012fd8     0 SECTION LOCAL  DEFAULT   17
    18: 00012fe0     0 SECTION LOCAL  DEFAULT   18
    19: 00013000     0 SECTION LOCAL  DEFAULT   19
    20: 000130b8     0 SECTION LOCAL  DEFAULT   20
    21: 000130c0     0 SECTION LOCAL  DEFAULT   21
    22: 00000000     0 SECTION LOCAL  DEFAULT   22
    23: 00000000     0 SECTION LOCAL  DEFAULT   23
    24: 00000000     0 SECTION LOCAL  DEFAULT   24
    25: 00000000     0 SECTION LOCAL  DEFAULT   25
    26: 00000000     0 SECTION LOCAL  DEFAULT   26
    27: 00000000     0 SECTION LOCAL  DEFAULT   27
    28: 00000000     0 SECTION LOCAL  DEFAULT   28
    29: 00000000     0 SECTION LOCAL  DEFAULT   29
    30: 00000000     0 SECTION LOCAL  DEFAULT   30
    31: 00000000     0 SECTION LOCAL  DEFAULT   31
    32: 00000000     0 FILE    LOCAL  DEFAULT  ABS crtstuff.c
    33: 00012fd0     0 OBJECT  LOCAL  DEFAULT   16 __CTOR_LIST__
    34: 00012fd8     0 OBJECT  LOCAL  DEFAULT   17 __DTOR_LIST__
    35: 00002094     0 OBJECT  LOCAL  DEFAULT   15
    36: 00000d30     0 FUNC    LOCAL  DEFAULT   11 __do_global_dtors_aux
    37: 000130c0     1 OBJECT  LOCAL  DEFAULT   21 completed.4849
    38: 000130c4     4 OBJECT  LOCAL  DEFAULT   21 dtor_idx.4851
    39: 00000e10     0 FUNC    LOCAL  DEFAULT   11 frame_dummy
    40: 000130c8    24 OBJECT  LOCAL  DEFAULT   21 object.4861
    41: 00000000     0 FILE    LOCAL  DEFAULT  ABS crtstuff.c
    42: 00012fd4     0 OBJECT  LOCAL  DEFAULT   16 __CTOR_END__
    43: 00002094     0 OBJECT  LOCAL  DEFAULT   15 __FRAME_END__
    44: 00001e30     0 FUNC    LOCAL  DEFAULT   11 __do_global_ctors_aux
    45: 00000000     0 FILE    LOCAL  DEFAULT  ABS ugpio.c
    46: 0000104c     0 OBJECT  LOCAL  DEFAULT   11 __pool_ugpio_open_44
    47: 00001050     0 FUNC    LOCAL  DEFAULT [MIPS16]    11 __pend_ugpio_open_44
    48: 00001114     0 OBJECT  LOCAL  DEFAULT   11 __pool_ugpio_full_open_66
    49: 00001118     0 FUNC    LOCAL  DEFAULT [MIPS16]    11 __pend_ugpio_full_open_66
    50: 00000000     0 FILE    LOCAL  DEFAULT  ABS gpio.c
    51: 000017d4     0 OBJECT  LOCAL  DEFAULT   11 __pool_gpio_set_edge_49
    52: 000017d8     0 FUNC    LOCAL  DEFAULT [MIPS16]    11 __pend_gpio_set_edge_49
    53: 0000194c     0 OBJECT  LOCAL  DEFAULT   11 __pool_gpio_get_edge_84
    54: 00001950     0 FUNC    LOCAL  DEFAULT [MIPS16]    11 __pend_gpio_get_edge_84
    55: 00000000     0 FILE    LOCAL  DEFAULT  ABS ugpio-internal.c
    56: 00012fe0    32 OBJECT  LOCAL  DEFAULT   18 ugpio_triggers
    57: 00001ce4     0 OBJECT  LOCAL  DEFAULT   11 __pool_gpio_read_69
    58: 00001ce8     0 FUNC    LOCAL  DEFAULT [MIPS16]    11 __pend_gpio_read_69
    59: 00001e2c     0 OBJECT  LOCAL  DEFAULT   11 __pool_gpio_check_86
    60: 00001e30     0 FUNC    LOCAL  DEFAULT [MIPS16]    11 __pend_gpio_check_86
    61: 00000000     0 FILE    LOCAL  DEFAULT  ABS
    62: 00001e90     0 FUNC    LOCAL  DEFAULT   12 _MIPS_STUBS_
    63: 00000168     0 OBJECT  LOCAL  DEFAULT  ABS _DYNAMIC
    64: 0001aff0     0 NOTYPE  LOCAL  DEFAULT   19 _gp
    65: 00012fdc     0 OBJECT  LOCAL  DEFAULT   17 __DTOR_END__
    66: 000130b8     0 OBJECT  LOCAL  DEFAULT   20 __dso_handle
    67: 00013000     0 OBJECT  LOCAL  DEFAULT  ABS _GLOBAL_OFFSET_TABLE_
    68: 00001331   104 FUNC    GLOBAL DEFAULT   11 ugpio_direction_output
    69: 00013000     0 NOTYPE  GLOBAL DEFAULT   19 _fdata
    70: 00001651    64 FUNC    GLOBAL DEFAULT   11 gpio_set_activelow
    71: 0001aff0     0 SECTION GLOBAL DEFAULT  ABS _gp_disp
    72: 000013c9    36 FUNC    GLOBAL DEFAULT   11 ugpio_set_edge
    73: 00001719    54 FUNC    GLOBAL DEFAULT   11 gpio_free_array
    74: 000019f1   160 FUNC    GLOBAL DEFAULT   11 gpio_fd_read
    75: 00001e90     0 FUNC    GLOBAL DEFAULT  UND snprintf
    76: 000013f1    42 FUNC    GLOBAL DEFAULT   11 gpio_is_requested
    77: 00000000     0 OBJECT  GLOBAL DEFAULT  UND __stack_chk_guard
    78: 00001c2d   188 FUNC    GLOBAL DEFAULT   11 gpio_read
    79: 000019cd    34 FUNC    GLOBAL DEFAULT   11 gpio_fd_close
    80: 00000000     0 FUNC    WEAK   DEFAULT  UND __register_frame_info@@GL
    81: 00001515    42 FUNC    GLOBAL DEFAULT   11 gpio_alterable_direction
    82: 00001da1   144 FUNC    GLOBAL DEFAULT   11 gpio_check
    83: 00001ce9   184 FUNC    GLOBAL DEFAULT   11 gpio_write
    84: 00000000     0 FUNC    WEAK   DEFAULT  UND __cxa_finalize
    85: 00001499   124 FUNC    GLOBAL DEFAULT   11 gpio_free
    86: 00001ea0     0 FUNC    GLOBAL DEFAULT  UND malloc
    87: 00001611    64 FUNC    GLOBAL DEFAULT   11 gpio_get_activelow
    88: 00001255    68 FUNC    GLOBAL DEFAULT   11 ugpio_set_activelow
    89: 00000e51   240 FUNC    GLOBAL DEFAULT   11 ugpio_request
    90: 00001eb0     0 FUNC    GLOBAL DEFAULT  UND lseek
    91: 000012a5    62 FUNC    GLOBAL DEFAULT   11 ugpio_get_direction
    92: 00001ec0     0 FUNC    GLOBAL DEFAULT  UND __stack_chk_fail
    93: 00000ccc     8 FUNC    GLOBAL DEFAULT   10 _init
    94: 000013a5    36 FUNC    GLOBAL DEFAULT   11 ugpio_get_edge
    95: 00000000     0 FUNC    WEAK   DEFAULT  UND __deregister_frame_info@@
    96: 00001ed0     0 FUNC    GLOBAL DEFAULT  UND write
    97: 00001541    70 FUNC    GLOBAL DEFAULT   11 gpio_get_direction
    98: 00000d30     0 NOTYPE  GLOBAL DEFAULT   11 _ftext
    99: 00001009    72 FUNC    GLOBAL DEFAULT   11 ugpio_open
   100: 00001ee0     0 FUNC    GLOBAL DEFAULT  UND read
   101: 00001b11   164 FUNC    GLOBAL DEFAULT   11 gpio_fd_get_edge
   102: 00001ef0     0 FUNC    GLOBAL DEFAULT  UND strncmp
   103: 000015bd    84 FUNC    GLOBAL DEFAULT   11 gpio_direction_output
   104: 000016d9    64 FUNC    GLOBAL DEFAULT   11 gpio_set_value
   105: 00000f41   136 FUNC    GLOBAL DEFAULT   11 ugpio_request_one
   106: 000012e5    74 FUNC    GLOBAL DEFAULT   11 ugpio_direction_input
   107: 00001299    10 FUNC    GLOBAL DEFAULT   11 ugpio_alterable_direction
   108: 00001589    52 FUNC    GLOBAL DEFAULT   11 gpio_direction_input
   109: 00001195     4 FUNC    GLOBAL DEFAULT   11 ugpio_fd
   110: 000130bc     0 NOTYPE  GLOBAL DEFAULT   21 __bss_start
   111: 00001691    72 FUNC    GLOBAL DEFAULT   11 gpio_get_value
   112: 00001f60     8 FUNC    GLOBAL DEFAULT   13 _fini
   113: 0000121d    56 FUNC    GLOBAL DEFAULT   11 ugpio_get_activelow
   114: 00001399    10 FUNC    GLOBAL DEFAULT   11 ugpio_alterable_edge
   115: 000017d9   188 FUNC    GLOBAL DEFAULT   11 gpio_request_one
   116: 0000177d    92 FUNC    GLOBAL DEFAULT   11 gpio_set_edge
   117: 000011d9    68 FUNC    GLOBAL DEFAULT   11 ugpio_set_value
   118: 00001751    42 FUNC    GLOBAL DEFAULT   11 gpio_alterable_edge
   119: 000130bc     0 NOTYPE  GLOBAL DEFAULT   20 _edata
   120: 000130e0     0 NOTYPE  GLOBAL DEFAULT   21 _end
   121: 0000141d   124 FUNC    GLOBAL DEFAULT   11 gpio_request
   122: 000018f9    88 FUNC    GLOBAL DEFAULT   11 gpio_get_edge
   123: 00001119   124 FUNC    GLOBAL DEFAULT   11 ugpio_close
   124: 00001f00     0 FUNC    GLOBAL DEFAULT  UND __errno_location
   125: 00001951   124 FUNC    GLOBAL DEFAULT   11 gpio_fd_open
   126: 00001051   200 FUNC    GLOBAL DEFAULT   11 ugpio_full_open
   127: 00001bb5   120 FUNC    GLOBAL DEFAULT   11 gpio_fd_set_edge
   128: 00001f10     0 FUNC    GLOBAL DEFAULT  UND strlen
   129: 00001895   100 FUNC    GLOBAL DEFAULT   11 gpio_request_array
   130: 00001f20     0 FUNC    GLOBAL DEFAULT  UND open
   131: 00001199    64 FUNC    GLOBAL DEFAULT   11 ugpio_get_value
   132: 00000fc9    62 FUNC    GLOBAL DEFAULT   11 ugpio_free
   133: 00001a91   128 FUNC    GLOBAL DEFAULT   11 gpio_fd_write
   134: 000130bc     0 NOTYPE  GLOBAL DEFAULT   21 _fbss
   135: 00001f30     0 FUNC    GLOBAL DEFAULT  UND close
   136: 00001f40     0 FUNC    GLOBAL DEFAULT  UND free
    0
  • C

    @Modest-Polykarpovich why would you not just follow the onion documented cross compilation process like the rest of us?

    1 M 1 Reply
  • M

    @crispyoz said in [Resolved] How can I use libugpio.so library?:

    @Modest-Polykarpovich why would you not just follow the onion documented cross compilation process like the rest of us?

    Because it's need the Docker that can be install in only Windows 10 Pro, but my Windows is "Home" and I can't use it.

    I think my path with pre-compiled Open WRT SDK is the simplest in this situation.

    0
  • C

    @Modest-Polykarpovich You don't need docker, as Windows 10 Home doesn't support Hyper-V but you can use other virtualisation products. VirtualBox will run on Windows 10 Home into which you install Linux, I use Ubuntu 18.

    0
gpio 160 library 15 poll 4 libugpio 3 polling 3
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