From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Sat, 07 Apr 2001 22:34:11 -0700 Subject: Re: Coding device driver for a minor device. From: Karsten Jeppesen To: David Schleef , Karsten Jeppesen Cc: Message-ID: In-Reply-To: <20010407175334.A27797@stm.lbl.gov> Mime-version: 1.0 Content-type: text/plain; charset="US-ASCII" Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: Thanks Dave, Looking through it I decided for major 10, minor 156, the lcd front panel. It is not merely a local use device rather I have a new ppc platform which has a front VFD, two push buttons and a tri-state led. Thaks again, karsten > From: David Schleef > Reply-To: David Schleef > Date: Sat, 7 Apr 2001 17:53:34 -0700 > To: Karsten Jeppesen > Cc: linuxppc-dev@lists.linuxppc.org > Subject: Re: Coding device driver for a minor device. > > > On Sat, Apr 07, 2001 at 12:42:19PM -0700, Karsten Jeppesen wrote: >> >> I have done modules. >> >> Now the problem is that I have 2 pushbuttons that I would like to read. >> Looking in the device list I see dev 10, which has a lot of - let us call it >> miscellaneous - content. This one seems to fit here. Maybe as a minor 185 or >> 186. >> But how do I locate the device driver for device major 10? >> >> I am certain there is a simple way - somebody knows it? > > See linux/include/linux/miscdevice.h. And you should probably use > a minor in the range of 240-255, as those are reserved for local > use. > > > > dave... > > > ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/