From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Wed, 16 Mar 2005 13:05:23 +0600 From: Alexey Morozov To: ALT Linux Sisyphus discussion list Subject: Re: [sisyphus] udev Message-ID: <20050316070523.GJ2741@pyro.hopawar.private.net> References: <423715A9.20403@iop.kiev.ua> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="ijf6z65S790CMqo8" Content-Disposition: inline In-Reply-To: <423715A9.20403@iop.kiev.ua> User-Agent: Mutt/1.4.2.1i X-BeenThere: sisyphus@altlinux.ru X-Mailman-Version: 2.1.5 Precedence: list Reply-To: ALT Linux Sisyphus discussion list List-Id: ALT Linux Sisyphus discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 16 Mar 2005 07:05:26 -0000 Archived-At: List-Archive: --ijf6z65S790CMqo8 Content-Type: text/plain; charset=koi8-r Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Mar 15, 2005 at 07:04:41PM +0200, Andriy Dobrovol's'kii wrote: > Hi, > =F0=D9=D4=C1=C0=D3=D8 =D7=CF=D4 =D3 udev =D0=CF=C4=D2=D5=D6=C9=D4=D8=D3= =D1... =EE=D5 =C9 =CE=C1=DE=C1=CC =D3 =DE=D4=C5=CE=C9=D1 =CD=C1=CE=CF=D7. :) > =F0=C5=D2=D7=D9=C5 =D7=CF=D0=D2=CF=D3=D9: > =F0=CF=DE=C5=CD=D5 =CF=CE=CF =C7=CF=D7=CF=D2=C9=D4, =DE=D4=CF udev - Linu= x configurable dynamic device=20 > naming support? =F4.=C5., =CB=C1=CB =D1 =DC=D4=CF =D0=CF=CE=D1=CC, =D0=CF= =C4=C4=C5=D2=D6=CB=C1 =C4=C9=CE=C1=CD=C9=DE=C5=D3=CB=CF=C7=CF=20 > =C9=CD=C5=CE=CF=D7=C1=CE=C9=D1 =D5=D3=D4=D2=CF=CA=D3=D4=D7 =D7 =CC=C9=CE= =D5=CB=D3=C5 =D3 =D7=CF=DA=CD=CF=D6=CE=CF=D3=D4=D8=C0 =CE=C1=D3=D4=D2=CF=CA= =CB=C9. =F4=CF=C7=C4=C1 =CB=C1=CB, =E4=C1. > =D3=D2=C1=DA=D5 =D6=C5 =D2=D1=C4=CF=CD =CE=C9=D6=C5, =D0=C9=DB=C5=D4, =DE= =D4=CF =DC=D4=C1 =D0=D2=CF=C7=D2=C1=CD=CD=C1 =D3=CF=DA=C4=C1=C5=D4 =C9 =D5= =C4=C1=CC=D1=C5=D4=20 > =C6=C1=CA=CC=D9 =D5=D3=D4=D2=CF=CA=D3=D4=D7 =D0=CF =CD=C5=D2=C5 =C9=C8 = =D0=CF=D1=D7=CC=C5=CE=C9=D1-=C9=D3=DE=C5=DA=CE=CF=D7=C5=CE=C9=D1 =D7 =D3=C9= =D3=D4=C5=CD=C5. =E7=C4=C5 =D0=D2=CF=D4=C9=D7=CF=D2=C5=DE=C9=C5? > udev provides a dynamic device directory containing only the files=20 > for actually present devices. It creates or removes device node=20 > files usually located in the /dev directory, or it renames network=20 > interfaces. >=20 > =E1 =DE=D4=CF =DC=D4=CF =D0=D2=CF =D3=C5=D4=C5=D7=D9=C5 =C9=CE=D4=C5=D2= =C6=C5=CA=D3=D9? =FC=D4=CF =CF=CE=CF =D0=D2=CF =D2=C1=C2=CF=D4=D5 =D3 ppp*?= =E9=CC=C9 =CF=CE=CF=20 > =C9 =D3 eth* =D4=CF=D6=C5 =D2=C1=C2=CF=D4=C1=C5=D4? =F7=C5=D2=CF=D1=D4=CE=CF, ppp =C9 =D0=D2=CF=DE=C9=C5 "=D0=D2=C9=DE=D5=C4=CC= =C9=D7=D9=C5" =D0=D2=CF=D4=CF=CB=CF=CC=D9. =EE=C1=D3=CB=CF=CC=D8=CB=CF =D1 = =DA=CE=C1=C0, eth* =C9 =C1=CE=C1=CC=CF=C7=CF=D7 =D7 =EC=C9=CE=D5=CB=D3=C5 =CE=C5=D4. =F7= =D0=D2=CF=DE=C5=CD, =DC=D4=CF =D5 =CD=C1=D4=C5=D2=D9=C8 =D3=C9=D3=D4=C5=CD= =CE=D9=C8 =C1=C4=CD=C9=CE=C9=D3=D4=D2=C1=D4=CF=D2=CF=D7 =CE=C1=C4=CF =D3=D0=D2=C1=DB= =C9=D7=C1=D4=D8, =D1 =D4=D5=D4 =CE=C5 =D7 =CB=D5=D2=D3=C5. > As part of the hotplug subsystem, udev is executed if a=20 > kernel device is added or removed from the system. On device =EE=D5, =D4=C5=D0=C5=D2=D8 =DC=D4=CF =C2=CF=CC=C5=C5 =CE=C5 =C5=C4=C9=CE=D3= =D4=D7=C5=CE=CE=D9=CA =D3=D0=CF=D3=CF=C2, =CE=CF =DC=D4=CF =CE=C5 =CF=DE=C5= =CE=D8 =D7=C1=D6=CE=CF =D7 =C4=C1=CE=CE=CF=CD =CB=CF=CE=D4=C5=CB=D3=D4=C5. > creation, udev reads the sysfs directory of the given device to=20 > collect device attributes like label, serial number or bus device=20 > number. These attributes may be used as keys to determine a=20 > unique name for the device. udev main tains a database for devices=20 > present on the system. > =E1 serial number or bus device number =DC=D4=CF =D0=CF-=D2=D5=D3=D3=CB= =C9, =DE=D4=CF =D7 =C4=C1=CE=CE=CF=CD=20 > =D3=CC=D5=DE=C1=C5 =C2=D5=C4=C5=D4? =EE=CF=CD=C5=D2 =D0=CF=D3=CC=C5=C4=CF= =D7=C1=D4=C5=CC=D8=CE=CF=C7=CF =D0=CF=D2=D4=C1 =C9 =C9=C4=C5=CE=D4=C9=C6=C9= =CB=C1=D4=CF=D2=20 > =D5=D3=D4=D2=CF=CA=D3=D4=D7=C1 =CE=C1 =DB=C9=CE=C5? =EE=C5=D4 serial number - =DC=D4=CF =D3=C5=D2=C9=CA=CE=D9=CA =CE=CF=CD=C5= =D2. =F5=CE=C9=CB=C1=CC=D8=CE=C1=D1 =CD=C5=D4=CB=C1 =D5=D3=D4=D2=CF=CA=D3= =D4=D7=C1. =F0=D2=C9=D3=D5=D4=D3=D4=D7=D5=C5=D4 (=D7 =D3=CC=D5=DE=C1=C5 USB flash =CE= =C1=CB=CF=D0=C9=D4=C5=CC=C5=CA) =CF=C4=CE=C1=CB=CF, =CE=C5 =D7=C5=DA=C4=C5. =F7=D3=C5=C7=C4=C1 =D0=D2=C9=D3=D5=D4=D3=D4=D7=D5=C5=D4 VendorId =C9 Produc= tId. bus device number - =CE=CF=CD=C5=D2 =D5=D3=D4=D2=CF=CA=D3=D4=D7=C1 =CE=C1 = =DB=C9=CE=C5. =F3=C5=CA=DE=C1=D3 =D1 =D7=CF=D4=CB=CE=D5=CC =C6=CC=DC=DB=CB=D5 =D7 USB-=D2=C1=DA=DF=C5=CD =D7 =CB=C1=D2=C4-=D2=C9=C4=C5= =D2=C5, =CF=CE=C1 =D0=CF=CC=D5=DE=C9=CC=C1 =C1=C4=D2=C5=D3 pci0000:00/0000:00:11.4/usb3/3-2/3-2:1.0 =D7=CF=D4=CB=CE=D5 =D7 =C4=D2=D5=C7=CF=CA USB-=D2=C1=DA=DF=C5=CD, =C9 =C1= =C4=D2=C5=D3 =C2=D5=C4=C5=D4 =C4=D2=D5=C7=CF=CA. > On device removal, udev queries its database for the name of=20 > the device file to be deleted. =EE=D5, =CE=C1=D4=D5=D2=C1=CC=D8=CE=CF, =D4=C1=CB =C9 =C4=C5=CC=C1=C5=D4. P.S. =E1=CB=C1=C4=C5=CD=C9=DE=C5=D3=CB=C9=CA =D0=CF=C4=C8=CF=C4 =D2=D5=CC= =C9=D4 :-). =F5=C4=C1=DE=C9 =D7 =C9=DA=D5=DE=C5=CE=C9=C9 :-). =F3=C5=D2=D8= =C5=DA=CE=CF :-) --ijf6z65S790CMqo8 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.5 (GNU/Linux) iD8DBQFCN9qzX5DZdJn19V0RAufNAKCp/QGgQ43axP4pCKIYKryJhGYbVwCfX/ky 8/knKv+IzQco8pcvRl1tero= =NSoo -----END PGP SIGNATURE----- --ijf6z65S790CMqo8--