you can try to use IOCTL
在2009-04-16 13:56:21，"niranjan puram" <puram.niranjan.kumar@xxxxxxxxx> 写道： >No heavy data transfer, I just want to set variables dynamically from >the user space. So i think declaring a kernel module parameter and >changing it through the /proc file system should solve the problem. >Also this is the first time I am programming in kernel :) so please >bear with me. Is there an exhaustive documentation as to how to do it? >Thanks in advance. > >On Thu, Apr 16, 2009 at 11:18 AM, sandeep lahane ><sandeep.lahane@xxxxxxxxx> wrote: >> On Thu, Apr 16, 2009 at 10:47 AM, Ramesh <rramesh1@xxxxxxxxx> wrote: >>> You could use netlink sockets >>> >>> On Wed, Apr 15, 2009 at 9:56 PM, niranjan puram >>> <puram.niranjan.kumar@xxxxxxxxx> wrote: >>>> Hello all, >>>> I need to set some variables defined in a kernel driver from the >>>> user space. Is there a clean simple way to do that? I thought of the >>>> following methods: socket connection, RPC ,etc. but was not able to >>>> find enough documentation regarding the same. Please help me, its >>>> urgent. >>>> >>>> Thanks, >>>> Niranjan Kumar >>>> >>>> -- >>>> To unsubscribe from this list: send an email with >>>> "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx >>>> Please read the FAQ at http://kernelnewbies.org/FAQ >>>> >>>> >>> >>> -- >>> To unsubscribe from this list: send an email with >>> "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx >>> Please read the FAQ at http://kernelnewbies.org/FAQ >>> >>> >>>I need to set some variables defined in a kernel driver from the >>>user space. >> >> Is that all you need to do? Or this involves heavy data transfer? >> Also, do you need to define certain things when your kernel module >> is inited or you have to do this much later? >> >> IMHO, you can use module params while inserting kernel module and >> depending on them you can do certain initialization etc. If you need it >> later i.e. after kernel module has been insmoded and being used then >> I think you can use /proc interface. If it involved data transfer between >> kernel and userspace then probably you will need netlink sockets etc. >> >> Regards, >> Sandeep. >> > >-- >To unsubscribe from this list: send an email with >"unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx >Please read the FAQ at http://kernelnewbies.org/FAQ >
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