-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Wed, 20 Nov 2002 11:15, Ian Molton wrote: > On Wed, 20 Nov 2002 10:39:45 +1100 > > Brad Hards <[EMAIL PROTECTED]> wrote: > > I'm not the maintainer, but my opinion is that if you have to use > > them, do so. If there is a better way, use that instead. > > If theres a better way to do ANYTHING do it instead. OK, I was perhaps a bit vague.
If you have an ioctl that is performing a function that is basically "get data", then you probably wanted a read(2) type interface. You might want to do that via a /proc node, a sysfs entry, a char device, or your own filesystem. Which one you choose is a matter of the rest of your API design. As an example, if you wanted to get the version for particular device interface, you could possibly build that into a /proc interface. If you wanted the name of a device, and the interfaces it is bound to, you might choose to use sysfs. If you have something that requires a query to be provided, and a response that depends on that query, you are probably in ioctl() land, as Alan pointed out. An example here is "make this key return thisother code". Not withstanding this, given an existing body of code (in user space or kernel space), it is difficult to justify major API restructuring unless there is a significant design flaw (inherent races, ambiguous results, or the like). Perhaps if you put up some specific, detailed examples, we could discuss them further? Brad - -- http://linux.conf.au. 22-25Jan2003. Perth, Aust. I'm registered. Are you? -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE92u3FW6pHgIdAuOMRAjDvAJ9LYrNB78n+dqKmuTcrg/VBffF0xgCgrLcO avIbfib6T4umPSjDpx8+huM= =nYxR -----END PGP SIGNATURE----- ------------------------------------------------------- This sf.net email is sponsored by: To learn the basics of securing your web site with SSL, click here to get a FREE TRIAL of a Thawte Server Certificate: http://www.gothawte.com/rd524.html _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
