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veeraiyan

veeraiyan

  • Linux.com Member
  • Posts: 4
  • Member Since: 01 Mar 10
  • Last Logged In: 03 Mar 10

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  • veeraiyan
    RE: Signal handling for 3 serial interrupt.
    Hi have you done a loop test in serial port (short 2 and 3 pin ) write data in serial port and check are you getting the data in your signal handler . if it works fine then your program is ok then go for device .
    Link to this post 03 Mar 10

    Hi

    have you done a loop test in serial port (short 2 and 3 pin )
    write data in serial port and check are you getting the data in your signal handler .

    if it works fine then your program is ok

    then go for device .

  • veeraiyan
    RE: Signal handling for 3 serial interrupt.
    how frequent you are sending AT command ?
    Link to this post 02 Mar 10

    how frequent you are sending AT command ?

  • veeraiyan
    RE: Signal handling for 3 serial interrupt.
    1.Are you able to receive data properly? i mean only receiving data packet from your GPRS device? i have done a program for my project exactly the same way which you want ? its working for fine N0 HARDWARE control see the file attached [file name=serail.txt size=2624]http://www.linux.com/media/kunena/attachments/legacy/files/serail.txt[/file]
    Link to this post 02 Mar 10

    1.Are you able to receive data properly? i mean only receiving data packet from your GPRS device?

    i have done a program for my project exactly the same way which you want ?
    its working for fine N0 HARDWARE control
    see the file attached [file name=serail.txt size=2624]http://www.linux.com/media/kunena/attachments/legacy/files/serail.txt[/file]

  • veeraiyan
    RE: copy_from_user does not copy from process-heap
    Hi void * kernel_mem = (void *) kmalloc(length_of_heap_vma,GFP_KERNEL); i think this line is the problem make void * kernel_mem to char * kernel_mem it should work . Eagerly waiting for your reply :)
    Link to this post 02 Mar 10

    Hi

    void * kernel_mem = (void *) kmalloc(length_of_heap_vma,GFP_KERNEL);
    i think this line is the problem

    make void * kernel_mem to char * kernel_mem


    it should work . Eagerly waiting for your reply :)

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