Hi Joseph, Since the kernel checks the module count (MOD_IN_USE) before calling your cleanup_module, you can't place it there. I put a piece of code in the ioctl handler - I think this is something described in the linux device drivers book. When the ATIFT_IOC_HARDRESET command is passed to the driver (compiled with ATIFT_DEBUG defined) it brings the count down to 1, so when the device is closed (this code is for a readable device) the count will be further reduced to 0. I used a little loop to bring the count to 1 as I don't am not aware of any official way of setting the count directly. The macros I use here are all sanctioned kernel interfaces. The complete source with a manual for using the driver is at: http://www.mech.ubc.ca/~watsma/ATI-FT_driver/ The manual shows how to open and close, and how to use the ioctl() call. Willem .. int atift_ioctl(struct inode *inodep, struct file *filep, unsigned int cmd, unsigned long arg) { struct ATIFT_Device *dev = (struct ATIFT_Device *) filep->private_data ; unsigned long flags ; int result ; /* check for correct command */ if (_IOC_TYPE(cmd) != ATIFT_IOC_MAGIC) return -EINVAL ; if (_IOC_NR(cmd) > ATIFT_IOC_MAXNR) return -EINVAL ; switch (cmd) { #ifdef ATIFT_DEBUG case ATIFT_IOC_HARDRESET: { /* set module use count to 1 and close the device */ int i = MOD_IN_USE ; for(;i>1;i--) MOD_DEC_USE_COUNT ; atift_release(inodep, filep); } break ; #endif joseph canou wrote: > > hello > can you tell me how to set the module use count to zero > thank you for your help > > -------Message d'origine------- > > De : WJ Atsma <[EMAIL PROTECTED]> > > Date : 16/08/2000 23:37:52 > > > > Another way is to set the module use count to zero before unloading the > > module. When you do this you can always unload the module, and lsmod > > will still get you the correct number. Clearly you should only use this > > for debugging. > > > > Willem > > > > > > Bas Kruiderink wrote: > > > > > > Hello, > > > > > > Can someone tell me how to 'force' a module to unload? When debugging my > > > rt-application the application somtimes crashes. This leaves the > > > rt-modules loaded and somtimes used. When (for example) the mbuff module > > > is not removed, I have to do a complete reboot to try again. > > > I know this may cause stability problems, but it would speed up the > > > debugging! > > > Anyone have an idea how to solve this, rmmod does not work (says module > > > is in use), lsmod also shows module is used. > > > > > > Greetings, > > > Bas Kruiderink. > > > > > > -- [rtl] --- > > > To unsubscribe: > > > echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR > > > echo "unsubscribe rtl " | mail [EMAIL PROTECTED] > > > --- > > > For more information on Real-Time Linux see: > > > http://www.rtlinux.org/rtlinux/ > > > > > > -- > > ~~ > > Willem J. Atsma - [EMAIL PROTECTED] > > url: http://www.mech.ubc.ca/~watsma > > ~~ > > -- [rtl] --- > > To unsubscribe: > > echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR > > echo "unsubscribe rtl " | mail [EMAIL PROTECTED] > > --- > > For more information on Real-Time Linux see: > > http://www.rtlinux.org/rtlinux/ > > > > > > > ______________________________________________________ > Boîte aux lettres - Caramail - http://www.caramail.com -- ~~ Willem J. Atsma - [EMAIL PROTECTED] url: http://www.mech.ubc.ca/~watsma ~~ -- [rtl] --- To unsubscribe: echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR echo "unsubscribe rtl <Your_email>" | mail [EMAIL PROTECTED] --- For more information on Real-Time Linux see: http://www.rtlinux.org/rtlinux/
