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dear friends i learning device drivers in linux .... i am doing serial driver for UART16550 of pentium board... i have doubt that whether we have to remove default serial ...
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  1. #1
    Just Joined!
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    Aug 2006
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    basic driver doubt


    dear friends

    i learning device drivers in linux ....
    i am doing serial driver for UART16550 of pentium board...
    i have doubt that whether we have to remove default serial module support
    while doing make menuconfig from kernel...or not....

    if suppose i giving modularize features in <M> options in make menuconfig..
    what will happen to the kernel
    or
    if i disabled the serial support ,what will happen to the kernel..

    thanks and regards
    rajasekar

  2. #2
    Linux Newbie jagernout's Avatar
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    May 2006
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    Indonesia
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    Read the notification up in the window

    Quote Originally Posted by rajasekar.rk
    dear friends

    i learning device drivers in linux ....
    i am doing serial driver for UART16550 of pentium board...
    i have doubt that whether we have to remove default serial module support
    while doing make menuconfig from kernel...or not....

    if suppose i giving modularize features in <M> options in make menuconfig..
    what will happen to the kernel
    or
    if i disabled the serial support ,what will happen to the kernel..

    thanks and regards
    rajasekar
    Hi,

    Please read the menuconfig window, in upper the window..there is the function wheter u choose <M> or <> or <*>. But if u wanna know, if you changed a <*> as default option in one of the setting to <M> then the setting will not activate automatically when the kernel is load (Boot) or (When u are log in) but it will activate to the module, for example if you wanna installing a device and the device need a module from your library, then the command in terminal will search the module and load it up.

    Got it??

    G. Luck
    -JG-

  3. #3
    Just Joined!
    Join Date
    Aug 2006
    Posts
    7

    basic linux device driver doubt

    dear sir,

    if i select <m> ,,then the module will be loaded when the device request.....
    if i choose NIL option... then the kernel will be with out the module support(serial)....

    why i am asking this question is ,when i tried my module and i tested with minicom..that time i got device busy problem or resource busy in dmesg.....
    but the module loading and unloading is ok...

    please give a suggestion sir to avoid device busy condition...

    thanks and regards
    rajasekar.r

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