On Sun, 8 Jan 2006 20:56:29 -0500
Dmitry Torokhov <[email protected]> wrote:
> > +static void rtc_proc_remove_device(struct class_device *class_dev,
> > + struct class_interface *class_intf)
> > +{
> > + down(&rtc_sem);
> > + if (rtc_dev == class_dev) {
> > + remove_proc_entry("driver/rtc", NULL);
> > + rtc_dev = NULL;
> > + }
> > + up(&rtc_sem);
> > +}
>
> What if I happen to remove (unregister) rtc devices in order other
> than they were registered in? You need a counter there instead of
> storing the first device created.
Only the first device that registers will get the /proc/driver/rtc
entry, which will be removed when the driver unregisters.
/proc/driver/rtc is a legacy interface, thus supporting it
for more than one RTC is useless. Any system that uses
more than one RTCs should access them via /dev/rtcX or
via sysfs.
--
Best regards,
Alessandro Zummo,
Tower Technologies - Turin, Italy
http://www.towertech.it
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