On 5/11/06, Christian Boon <c.boon@xxxxxxxxxxxxxxxxxxxx> wrote:
this situation is best implemented using sysfs attribute (file)
but your user space application has to check (read) this file
you are seeking something like a callback function that will be called when a certain event occurs .. i don't know a native implementation to this feature
you can check for errors by ioctl, reading from device file, reading from sysfs file, implementing a netlink socket .. but in all cases your user space application has to make an action (even doing a listen or read from a socket)
please let me know if such a callback exist
people CMIIW please
hope this helps
Hi,
i know it is possible with an ioctl to change a value in a kernel module.
Is it possible to let a kernel module change a value in user space when
some kind of error occurs?
this situation is best implemented using sysfs attribute (file)
but your user space application has to check (read) this file
so that i dont need to check 'if' an error occured.
you are seeking something like a callback function that will be called when a certain event occurs .. i don't know a native implementation to this feature
you can check for errors by ioctl, reading from device file, reading from sysfs file, implementing a netlink socket .. but in all cases your user space application has to make an action (even doing a listen or read from a socket)
please let me know if such a callback exist
people CMIIW please
hope this helps
--
MHD.Tayseer
