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Forum: Kernel

Request help with Linux kernel compilation, theory, programming, or other kernel related issues

  1. how soes kernel handle new file creation

    hi, I wish to understand the way kernel works when a user/app tries to create a file in a directorty. The background - We have a java...

    Started by joesatch, 08-05-2010
    • Replies: 1
    • Views: 856
    08-05-2010 Go to last post
  2. Intel vs AMD (hyperhreading vs cores)

    I'm trying to understand how Linux handles two different configurations Intel dual cpus with 6 2.9 ghz cores, 2 hw threads per core. Total 24...

    Started by kmand, 08-03-2010
    • Replies: 0
    • Views: 1,513
    08-03-2010 Go to last post
  3. Telephony Device Driver Fails: Memory Leak

    I have voice IVR on RHEL 4.5 in one of the remote production environment. The system is 32 bit and caters normal load i.e 30% of the total capacity....

    Started by raghuvendra, 08-01-2010
    • Replies: 0
    • Views: 872
    08-01-2010 Go to last post
  4. Disk driver command history

    I have a requirement to log the command history of all disk drives running in the system. I test disk drives. I was thinking the drivers could be...

    Started by rhurst24, 07-31-2010
    • Replies: 2
    • Views: 658
    08-01-2010 Go to last post
  5. how you are writing to eth0 using write()

    I was wondering if you could tell me how you are writing to eth0 using write(). I'm trying to do something similar and haven't been able to find how...

    Started by Llan07, 07-30-2010
    • Replies: 1
    • Views: 1,021
    07-31-2010 Go to last post
  6. SPI Keyboard driver

    Hello all, for an embedded board lacking the PS2 port, I've designed an hardware adapter which reads the PS2 packets and translate them bit-to-bit...

    Started by john fulgor, 07-30-2010
    • Replies: 0
    • Views: 2,758
    07-30-2010 Go to last post
  7. multiple custom desktops

    I want to develop multiple desktops in Red hat with each desktop having custom features like one only for gaming,other for programming, etc. My idea...

    Started by gsak8490, 07-08-2010
    • Replies: 1
    • Views: 657
    07-28-2010 Go to last post
  8. machine check exception question (mcelog)

    Hi, I'm new to mcelog as of this morning, but I'd like to help out a friend on a project and am hoping someone can give me a push in the right...

    Started by sarina, 07-28-2010
    • Replies: 0
    • Views: 1,560
    07-28-2010 Go to last post
  9. How to use write system call within a system call

    I'm writing a new system call named icsys, i want to write something to the console when this system call is invoked. i tried calling write() from...

    Started by byteinnovator, 07-28-2010
    • Replies: 0
    • Views: 810
    07-28-2010 Go to last post
  10. ip_fw.h missing or not exist

    Hi, I'm trying to install sProbe(a bandwidth estimation tool) and error occurs that error: linux/ip_fw.h: No such file or directory I'm using Fedora...

    Started by sagitta1987, 07-27-2010
    • Replies: 4
    • Views: 2,004
    07-27-2010 Go to last post
  11. Question How to send data from a kernel module to a user application? (netlink sockets?)

    Hi. :D I don't know Linux kernel well, but I need to find a way to send data from a kernel module to a user application. I read about the netlink...

    Started by thecell, 07-27-2010
    • Replies: 0
    • Views: 1,402
    07-27-2010 Go to last post
  12. pci_map_single()

    Can anyone tell me if the kernel function pci_map_single() can accept a 64 bit virtual address, for example from kmalloc() and provide the correct...

    Started by griffin, 07-27-2010
    • Replies: 0
    • Views: 4,033
    07-27-2010 Go to last post
  13. SPI test application fails

    Hi, I am working on spi driver for freescale mxc board.My issue is with the test application.Its not working properly for bits per word option...

    Started by prathyusha_kh, 07-27-2010
    • Replies: 0
    • Views: 1,790
    07-27-2010 Go to last post
  14. How to disable/remove usb driver from the kernel

    Can you please let me know how do i disable/remove the USB Host Controller driver from the kernel. I do not want any interrupts to be triggered...

    Started by sam_nbr, 07-24-2010
    • Replies: 3
    • Views: 3,271
    07-25-2010 Go to last post
  15. try_module_get clarification needed

    From what I can tell this function is used to gain access to a kernel module from another kernel module, or is it just used to detect the presence of...

    Started by BrianStark, 07-23-2010
    • Replies: 0
    • Views: 1,205
    07-23-2010 Go to last post
  16. System crash, doesn't save info to kern.log

    I am currently creating a usb device driver consisting of mostly read and write commands. It can successfully read/write using the bulk endpoints,...

    Started by wybourn, 07-23-2010
    • Replies: 0
    • Views: 972
    07-23-2010 Go to last post
  17. Writing to the frame buffer?

    Okay, so I have this embedded linux package that's running on some ARM hardware. I've noticed that a bash script is run on start up that writes...

    Started by cryptinitedemon, 07-20-2010
    • Replies: 1
    • Views: 1,314
    07-23-2010 Go to last post
  18. Question [SOLVED] Device or resource busy when connecting to a tun device

    Hello all, This is my first post here, so my apologies if this question isn't in the proper forum. I've got an OpenEmbedded installation running...

    Started by gstlouis, 07-16-2010
    • Replies: 1
    • Views: 8,303
    07-19-2010 Go to last post
  19. Regarding char driver operation

    Hi, I am coding a char device driver and i want to register the file operations with char driver. I have also implemented the IOCTL interface. ...

    Started by dinkyverma279, 07-19-2010
    • Replies: 0
    • Views: 608
    07-19-2010 Go to last post
  20. USB Device driver

    Hi all, We are planing to write a usb device driver on the host. The driver should support read and write operations. We used the...

    Started by nileshshah89, 07-15-2010
    • Replies: 3
    • Views: 3,670
    07-17-2010 Go to last post

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