From: Alessandro Zummo <alessandro.zummo@towertech.it>
To: Dmitry Torokhov <dtor_core@ameritech.net>
Cc: Alessandro Zummo <a.zummo@towertech.it>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 4/8] RTC subsystem, proc interface
Date: Mon, 9 Jan 2006 03:04:33 +0100 [thread overview]
Message-ID: <20060109030433.581c49e7@inspiron> (raw)
In-Reply-To: <200601082056.30227.dtor_core@ameritech.net>
On Sun, 8 Jan 2006 20:56:29 -0500
Dmitry Torokhov <dtor_core@ameritech.net> 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
next prev parent reply other threads:[~2006-01-09 2:04 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-08 23:12 [PATCH 0/8] RTC subsystem Alessandro Zummo
2006-01-08 23:12 ` [PATCH 1/8] RTC subsystem, class Alessandro Zummo
2006-01-08 23:12 ` [PATCH 2/8] RTC subsystem, ARM cleanup Alessandro Zummo
2006-01-08 23:12 ` [PATCH 3/8] RTC subsystem, sysfs interface Alessandro Zummo
[not found] ` <200601082102.40992.dtor_core@ameritech.net>
2006-01-09 2:13 ` Alessandro Zummo
2006-01-08 23:12 ` [PATCH 4/8] RTC subsystem, proc interface Alessandro Zummo
[not found] ` <200601082056.30227.dtor_core@ameritech.net>
2006-01-09 2:04 ` Alessandro Zummo [this message]
2006-01-09 2:50 ` Dmitry Torokhov
2006-01-08 23:12 ` [PATCH 5/8] RTC subsystem, dev interface Alessandro Zummo
2006-01-09 2:50 ` Dmitry Torokhov
2006-01-09 3:12 ` Alessandro Zummo
2006-01-09 6:39 ` Dmitry Torokhov
2006-01-09 9:14 ` Alessandro Zummo
2006-01-08 23:12 ` [PATCH 6/8] RTC subsystem, X1205 driver Alessandro Zummo
2006-01-08 23:12 ` [PATCH 7/8] RTC subsystem, test device/driver Alessandro Zummo
2006-01-08 23:12 ` [PATCH 8/8] RTC subsystem, DS1672 driver Alessandro Zummo
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