Re: How to symlink devfs devices?
Paul B. Mahol writes: Is it possible to create a symlink to a device and use the symlink in place of the real device name in FreeBSD, especially in version 7.2? 1. A disk /dev/camera -> /dev/da0s1 devfs.conf(5) 2. A network device re0 -> lan0 same as above, but there is way to completly hide re0: # ifconfig re0 name lan0 Hi FreeBSD community Thank you all for replies. Yes, USB Mass Storage devices could be symlinked (may be others too) but ethernet devices cannot be symlinked but ethernet interfaces can be renamed. I have one more question, how do I know what device is attached to an ethernet interface after it is renamed? Regards Sagara ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
Re: How to symlink devfs devices?
On Wed, 8 Jul 2009 21:45:48 +0200 Roland Smith wrote: > On Wed, Jul 08, 2009 at 05:49:24PM +, Paul B. Mahol wrote: > > > > > > Is it possible to create a symlink to a device and use the > > > symlink in place of the real device name in FreeBSD, especially > > > in version 7.2? > > > > > > 1. A disk > > >/dev/camera -> /dev/da0s1 > > > devfs.conf(5) > > Geneally, yes. But not in this case, I think. You don't want any old > usb device to be linked to /dev/camera! USB devices are enumerated in > the sequence thay are plugged in. So there is no hard guarantee that > the camera will always be available as da0s1. It might be da1s1 if > another USB drive was plugged in earlier. > > And not all cameras represent themselves as disk devices (USB mass > storage). Lots of modern ones use PTP > [http://en.wikipedia.org/wiki/Picture_Transfer_Protocol]. > > So in this case it might be better to use HAL (via hald(8)) > [http://freedesktop.org/wiki/Software/hal] although if it is a standard usb mass storage device, you can mount it via it's msdos volume label, or a generic label written to the device by glabel. Both methods are described in the glabel(8). ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
Re: How to symlink devfs devices?
On Wed, 08 Jul 2009 07:33:42 -0500, "Sagara Wijetunga" wrote: > Hi > > Is it possible to create a symlink to a device and use the symlink in place > of the real device name in FreeBSD, especially in version 7.2? > > 1. A disk >/dev/camera -> /dev/da0s1 > > 2. A network device >re0 -> lan0 That's no problem: Use the "link" statement: "link ", such as linkda0s1 camera linkre0 lan0 in you /etc/devfs.conf file. See the manual page for this file for more information, or see the example entries in this file. -- Polytropon >From Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ... ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
Re: How to symlink devfs devices?
On Wed, Jul 08, 2009 at 05:49:24PM +, Paul B. Mahol wrote: > > > > Is it possible to create a symlink to a device and use the symlink in place > > of the real device name in FreeBSD, especially in version 7.2? > > > > 1. A disk > >/dev/camera -> /dev/da0s1 > devfs.conf(5) Geneally, yes. But not in this case, I think. You don't want any old usb device to be linked to /dev/camera! USB devices are enumerated in the sequence thay are plugged in. So there is no hard guarantee that the camera will always be available as da0s1. It might be da1s1 if another USB drive was plugged in earlier. And not all cameras represent themselves as disk devices (USB mass storage). Lots of modern ones use PTP [http://en.wikipedia.org/wiki/Picture_Transfer_Protocol]. So in this case it might be better to use HAL (via hald(8)) [http://freedesktop.org/wiki/Software/hal]. Roland -- R.F.Smith http://www.xs4all.nl/~rsmith/ [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated] pgp: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 (KeyID: C321A725) pgpWgQ1vvTcwH.pgp Description: PGP signature
Re: How to symlink devfs devices?
> > Is it possible to create a symlink to a device and use the symlink in place > of the real device name in FreeBSD, especially in version 7.2? > > 1. A disk >/dev/camera -> /dev/da0s1 devfs.conf(5) > > 2. A network device >re0 -> lan0 same as above, but there is way to completly hide re0: # ifconfig re0 name lan0 -- Paul ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
