January 2011 - kernelnewbies@kernelnewbies.org

Kernel newbies archives of yesteryears
by Prabhu nath Jan. 3, 2011

Jan. 3, 2011

Dear All, Where do we find the archives of kernelnewbies of yesteryears ? Currently, I find only Dec 2010 and Jan 2011. The archives I refered is http://lists.kernelnewbies.org/pipermail/kernelnewbies/ Thanks, Prabhu

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some questions about errno.h
by vichy Jan. 2, 2011

Jan. 2, 2011

Dear all: I found there are 2 errno.h we can include when coding. #include <asm-generic/errno.h> and #include <linux/errno.h> is there difference or rue I need to follow when I want to take advantage of errno in kernel? thanks for your help, vichy

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Adding a kobject in the device model hierarchy
by Prabhu nath Jan. 2, 2011

Jan. 2, 2011

Dear All, I have written one pseudo char driver. I have initialized the device generic structure with cdev_init function. This will initialize the kobject structure embedded within struct cdev with appropriate ktype. If I want to add this kobject in /sys/devices/virtual/misc/ location of sysfs, how is the following fields set * kobj->parent * kobj->kset * kobj->kset->obj. Also, in general how to look out for the parent kobject ? Would like to know, if there are mechanisms provisioned by Linux Kernel. Robert: My 2 cents as I am reading the LKD(3rd edition), it would be appropriate to add one example as a solution to the above problem. Generally, it has been told as kobj->kset = my_kset in Page # 353. Note: Even in LDD(3rd editon page 369). It has been mentioned that "The kobject's kset field must be pointed at the kset of interest" Thanks, Prabhu

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How to know when any process is trying to establish an internet connection?
by Arreche Jan. 1, 2011

Jan. 1, 2011

Hi, I have multiple network interfaces(Ethernet, GPRS and Modem). Is possible to setup them on demand? And to block a process until It gets connection by any interface? Thanks. -- .

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How to use kgdb and kdb
by AQ Tast Jan. 1, 2011

Jan. 1, 2011

Hello Everyone, I am trying to get my hands dirty with kernel programming and came across kgdb and kdb. Can someone point me to a tutorial which a newbie can easily get through. Also I was looking forward for using Qemu / VBox for my experiments. Would be nice if there are tutorials on how to debug using these tools. Regards, Tast

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