Reading of keymaps is aborted when EINVAL is returned from EVIOCGETKEYCODE.
Scan codes are not always continuous ranges of values starting at 0, so this
can result in not getting the full keymap for a device. Instead, continue
processing if EINVAL is returned.
Pressing Escape will only actually work if keymap is currently examining the
primary keyboard. For other devices the user needs to press Control-C instead.
Some drivers, like thinkpad_acpi, do not send a scan code at all (for known
keys), and some send the key code first, then the scan code. Implement a better
state machine which acceps them in any order and wait until a SYN event. If the
driver does not send SYN events, keymap will also handle this and print out
that fact.
Thanks to Seth Forshee for pointing out how this really works!
https://launchpad.net/bugs/702407
Fix spelling in docbook comments, code comments, and a local variable
name. Thanks to "ispell -h" for docbook HTML and "scspell" for source
code.
Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
The keymap table has some holes in it, which caused the interactive mode to
crash for unknown keys. In these cases, print the numeric key code instead.
Kay Sievers