46 messages in org.kernel.vger.linux-kernelRe: tty: add 'active' sysfs attribute...| From | Sent On | Attachments |
|---|---|---|
| Kay Sievers | Nov 16, 2010 7:46 am | |
| Alan Cox | Nov 16, 2010 7:56 am | |
| Kay Sievers | Nov 16, 2010 8:12 am | |
| Alan Cox | Nov 16, 2010 9:14 am | |
| Kay Sievers | Nov 16, 2010 10:51 am | |
| Alan Cox | Nov 16, 2010 11:55 am | |
| Kay Sievers | Nov 16, 2010 12:15 pm | |
| Alan Cox | Nov 16, 2010 12:48 pm | |
| Kay Sievers | Nov 16, 2010 1:28 pm | |
| Lennart Poettering | Nov 16, 2010 1:35 pm | |
| Lennart Poettering | Nov 16, 2010 1:42 pm | |
| Alan Cox | Nov 16, 2010 2:51 pm | |
| Alan Cox | Nov 16, 2010 2:55 pm | |
| Lennart Poettering | Nov 16, 2010 2:58 pm | |
| Alan Cox | Nov 16, 2010 3:04 pm | |
| Lennart Poettering | Nov 16, 2010 3:10 pm | |
| Lennart Poettering | Nov 16, 2010 3:18 pm | |
| Alan Cox | Nov 16, 2010 3:45 pm | |
| Etched Pixels | Nov 16, 2010 3:49 pm | |
| John Stoffel | Nov 17, 2010 8:31 am | |
| Vald...@vt.edu | Nov 17, 2010 2:00 pm | |
| Kay Sievers | Nov 17, 2010 3:39 pm | |
| Alan Cox | Nov 17, 2010 3:56 pm | |
| Greg KH | Nov 17, 2010 5:27 pm | |
| Lennart Poettering | Nov 17, 2010 5:48 pm | |
| Greg KH | Nov 17, 2010 5:52 pm | |
| Lennart Poettering | Nov 17, 2010 6:28 pm | |
| Alan Cox | Nov 18, 2010 2:14 am | |
| Dr. Werner Fink | Nov 18, 2010 2:59 am | |
| Alan Cox | Nov 18, 2010 3:23 am | |
| Kay Sievers | Nov 18, 2010 3:54 am | |
| Kay Sievers | Nov 18, 2010 4:03 am | |
| Dr. Werner Fink | Nov 18, 2010 4:12 am | |
| Alan Cox | Nov 18, 2010 4:57 am | |
| Alan Cox | Nov 18, 2010 5:00 am | |
| Dr. Werner Fink | Nov 18, 2010 5:13 am | |
| Alan Cox | Nov 18, 2010 6:41 am | |
| Dr. Werner Fink | Nov 19, 2010 5:21 am | |
| Alan Cox | Nov 19, 2010 7:46 am | |
| Dr. Werner Fink | Nov 19, 2010 9:06 am |  .tiocgdev |
| Greg KH | Nov 19, 2010 10:02 am | |
| Dr. Werner Fink | Nov 19, 2010 10:41 am | |
| Alan Cox | Nov 20, 2010 4:39 am | |
| Dr. Werner Fink | Dec 1, 2010 3:15 am | |
| Dr. Werner Fink | Dec 1, 2010 4:31 am | .tiocgdev |
| Dr. Werner Fink | Dec 3, 2010 3:47 am | .Other |
| Subject: | Re: tty: add 'active' sysfs attribute to tty0 and console device | |
|---|---|---|
| From: | Alan Cox (al...@lxorguk.ukuu.org.uk) | |
| Date: | Nov 18, 2010 3:23:12 am | |
| List: | org.kernel.vger.linux-kernel | |
is the most pressing case e.g. on s390 or zSeries) and this without forcing (and maybe stealing) the controlling tty on the system console to be able to detect the primary tty/console.
What do you mean by console in this context
The console in printk context and the "console" in "active vt window" are unrelated concepts with the same name, so its a bit confusing to follow here.
facilities (having device, read, write, and unblank) are also shown in the new file /sys/class/tty/console/active ... but maybe Randy could says a few words for what this is usable.
The system console does not even need to be a tty device, and on many embedded devices is not (it may for example by a RAM buffer not wiped over reboots or it may be jtag or MIPI trace ports.
"tty0" is *currently* a shorthand for "the VT the keyboard/display are showing". That's a shorthand that in itself will make no sense in future.
Alan
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