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undefined reference to libusb using cyusb


undefined reference to libusb using cyusb
» cpp » undefined reference to libusb using cyusb
By : BjGa
Date : November 23 2020, 04:01 AM
fixed the issue. Will look into that further I have downloaded linux software of cypress SDK EZ-USB FX3 Software Development Kit. Inside Cypress/cyusb_linux_1.0.5/src there's many .cpp file that I compile with make and that work perfectly. I wanted to do my own cpp project so I copy the code of one of those files and tried to compile it using CMakeLists.txt. I have the following structure: , You need to add the library with the standard CMake mechanism.
code :
target_link_libraries(project usb-1.0)


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Libusb undefined reference to

Libusb undefined reference to

By : user3413957
Date : March 29 2020, 07:55 AM
help you fix your problem you have to set the library linker flag for compilation in the linker, you can get a full list in the console by executing
code :
pkg-config --list-all

pkg-config --libs libusb

-lusb

-lusb-1.0

g++ myfile.cpp -lusb[-1.0]

Project -> Properties -> C/C++
Build -> Miscellaneous -> flags
Undefined method all_input_usages using libusb

Undefined method all_input_usages using libusb

By : Sandeep Kshirsagar
Date : March 29 2020, 07:55 AM
this one helps. You should step away from that demo code, because it is hopelessly outdated and the API has radically changed since.
You can see all available methods in IRB when you type device.methods - Object.new.methods, it's a trick i often use when i want to explore what an object has to offer. Maybe this will help you find the method you are looking for.
How to solve the 'undefined reference to libusb' error in ros?

How to solve the 'undefined reference to libusb' error in ros?

By : user2790602
Date : March 29 2020, 07:55 AM
I wish this help you find_package requires that CMake have a corresponding Find.cmake
Cmake have a pkg-config module.
code :
find_package(PkgConfig REQUIRED)
pkg_search_module(LIBUSB1 REQUIRED libusb-1.0)
include_directories(SYSTEM ${LIBUSB1_INCLUDE_DIRS})
Undefined reference to libusb functions

Undefined reference to libusb functions

By : AzOoDev
Date : March 29 2020, 07:55 AM
I wish did fix the issue. After discussion with an engineer from the vendor that provided the software, it was determined that I was using a newer version of Ubuntu (v16) then they had developed the software on. When I compiled on the older version (v14), it compiled just fine.
The engineer wasn't able to explain what changed in Ubuntu 16 that broke their code, but this solved the problem for me for now.
libusb: error [submit_bulk_transfer] submiturb failed error -1 errno=2 - What am I doing wrong with LibUSB?

libusb: error [submit_bulk_transfer] submiturb failed error -1 errno=2 - What am I doing wrong with LibUSB?

By : Kristian von Riechst
Date : March 29 2020, 07:55 AM
I hope this helps you . Ok, so I figured out the issue.
Basically, apparently, for ~reasons~, the endpoints for my device are attached to configuration 0, alternate setting 1.
code :
1 pi@testpi:~/BatLogger/Interface/libusb_test$ sudo python3 test.py
INFO:Main.Gui:Device: DEVICE ID 03eb:2423 on Bus 001 Address 004 =================
 bLength                :   0x12 (18 bytes)
 bDescriptorType        :    0x1 Device
 bcdUSB                 :  0x200 USB 2.0
 bDeviceClass           :    0x0 Specified at interface
 bDeviceSubClass        :    0x0
 bDeviceProtocol        :    0x0
 bMaxPacketSize0        :   0x40 (64 bytes)
 idVendor               : 0x03eb
 idProduct              : 0x2423
 bcdDevice              :  0x100 Device 1.0
 iManufacturer          :    0x1 ATMEL ASF
 iProduct               :    0x2 Vendor Class Example
 iSerialNumber          :    0x0
 bNumConfigurations     :    0x1
  CONFIGURATION 1: 100 mA ==================================
   bLength              :    0x9 (9 bytes)
   bDescriptorType      :    0x2 Configuration
   wTotalLength         :   0x45 (69 bytes)
   bNumInterfaces       :    0x1
   bConfigurationValue  :    0x1
   iConfiguration       :    0x0
   bmAttributes         :   0xc0 Self Powered
   bMaxPower            :   0x32 (100 mA)
    INTERFACE 0: Vendor Specific ===========================
     bLength            :    0x9 (9 bytes)
     bDescriptorType    :    0x4 Interface
     bInterfaceNumber   :    0x0
     bAlternateSetting  :    0x0
     bNumEndpoints      :    0x0
     bInterfaceClass    :   0xff Vendor Specific
     bInterfaceSubClass :   0xff
     bInterfaceProtocol :   0xff
     iInterface         :    0x0
    INTERFACE 0, 1: Vendor Specific ========================
     bLength            :    0x9 (9 bytes)
     bDescriptorType    :    0x4 Interface
     bInterfaceNumber   :    0x0
     bAlternateSetting  :    0x1
     bNumEndpoints      :    0x6
     bInterfaceClass    :   0xff Vendor Specific
     bInterfaceSubClass :   0xff
     bInterfaceProtocol :   0xff
     iInterface         :    0x0
      ENDPOINT 0x81: Interrupt IN ==========================
       bLength          :    0x7 (7 bytes)
       bDescriptorType  :    0x5 Endpoint
       bEndpointAddress :   0x81 IN
       bmAttributes     :    0x3 Interrupt
       wMaxPacketSize   :   0x40 (64 bytes)
       bInterval        :    0x1
      ENDPOINT 0x2: Interrupt OUT ==========================
       bLength          :    0x7 (7 bytes)
       bDescriptorType  :    0x5 Endpoint
       bEndpointAddress :    0x2 OUT
       bmAttributes     :    0x3 Interrupt
       wMaxPacketSize   :   0x40 (64 bytes)
       bInterval        :    0x1
      ENDPOINT 0x83: Bulk IN ===============================
       bLength          :    0x7 (7 bytes)
       bDescriptorType  :    0x5 Endpoint
       bEndpointAddress :   0x83 IN
       bmAttributes     :    0x2 Bulk
       wMaxPacketSize   :   0x40 (64 bytes)
       bInterval        :    0x0
      ENDPOINT 0x4: Bulk OUT ===============================
       bLength          :    0x7 (7 bytes)
       bDescriptorType  :    0x5 Endpoint
       bEndpointAddress :    0x4 OUT
       bmAttributes     :    0x2 Bulk
       wMaxPacketSize   :   0x40 (64 bytes)
       bInterval        :    0x0
      ENDPOINT 0x85: Isochronous IN ========================
       bLength          :    0x7 (7 bytes)
       bDescriptorType  :    0x5 Endpoint
       bEndpointAddress :   0x85 IN
       bmAttributes     :    0x1 Isochronous
       wMaxPacketSize   :  0x100 (256 bytes)
       bInterval        :    0x1
      ENDPOINT 0x6: Isochronous OUT ========================
       bLength          :    0x7 (7 bytes)
       bDescriptorType  :    0x5 Endpoint
       bEndpointAddress :    0x6 OUT
       bmAttributes     :    0x1 Isochronous
       wMaxPacketSize   :  0x100 (256 bytes)
       bInterval        :    0x1

rc = libusb_set_interface_alt_setting(dev_handle, DEVICE_CONFIGURATION, 1);
if(rc != 0) {
    std::cout << "Cannot configure alternate setting" << std::endl;
    return 3;
}
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