Messages in this thread | | | Date | Wed, 14 Dec 2005 12:36:32 +0100 | From | Tilman Schmidt <> | Subject | Re: [linux-usb-devel] [PATCH 6/9] isdn4linux: Siemens Gigaset drivers - procfs interface |
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Greg KH wrote: > Are there existing userspace tools that rely on proc files for isdn > control? If not, please do not add new proc files, these should be in > sysfs instead.
Thanks for your comment. We'll move everything to sysfs. Most of it is done already, but there is a problematic case I'd like your advice on: the "info" and "hwinfo" entries, which emit several lines of status and statistics information.
According to Documentation/filesystems/sysfs.txt: "Mixing types, expressing multiple lines of data, and doing fancy formatting of data is heavily frowned upon. Doing these things may get you publically humiliated and your code rewritten without notice." We certainly don't want to risk that. :-)
We have tentatively created an entry in /proc/tty/driver/ as proposed in LDD3 chapter 18, section "proc and sysfs Handling of TTY Devices" as a replacement. But that has the drawback of giving us only a single file per driver as opposed to one or two files per device. So the driver has to enumerate the devices and concatenate their data, which appears cumbersome, even though normal users will probably never connect more than one of these devices.
Is there a better alternative?
Thanks Tilman
-- Tilman Schmidt E-Mail: tilman@imap.cc Bonn, Germany Diese Nachricht besteht zu 100% aus wiederverwerteten Bits. Ungeöffnet mindestens haltbar bis: (siehe Rückseite) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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