Date: Sun, 01 Nov 2009 22:55:19 +0100 From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@des.no> To: Ed Schouten <ed@80386.nl> Cc: Kostik Belousov <kostikbel@gmail.com>, svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org, Christian Brueffer <brueffer@freebsd.org> Subject: Re: svn commit: r198768 - head/sbin/mknod Message-ID: <86y6mpj4fs.fsf@ds4.des.no> In-Reply-To: <20091101202242.GK1293@hoeg.nl> (Ed Schouten's message of "Sun, 1 Nov 2009 21:22:42 %2B0100") References: <200911011825.nA1IPBQ2031333@svn.freebsd.org> <20091101184322.GP2147@deviant.kiev.zoral.com.ua> <20091101202242.GK1293@hoeg.nl>
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Ed Schouten <ed@80386.nl> writes: > Which is why I proposed changing these sentences to the past tense, > i.e.: > > The major device number is an integer number which tells the > kernel which device driver entry point to use. > > should become: > > The major device number is an integer number which used to tell > the kernel which device driver entry point to use. > > and: > > The minor device number tells the kernel which subunit the node > corresponds to on the device; for example, > > should become: > > The minor device number used to tell the kernel which subunit > the node corresponds to on the device; for example, How about replacing both paragraphs with major, minor Historically, a device number consisted of two parts: the major number, which identified a device driver, and the minor number, which identified an individual device handled by that driver. FreeBSD no longer makes that distinction; each device has a unique system-wide minor number, and the major number is always zero. However, the distinction is still important when creating device nodes on a file system intended for use by an older system. (modulo errors in grammar and style) The paragraph about b | c should be altered in a similar manner, to emphasize that FreeBSD does not have block devices, but that block device nodes can still be created for use by older systems. DES --=20 Dag-Erling Sm=C3=B8rgrav - des@des.no
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