<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - Handle MT_TOOL_PALM" href="https://bugs.freedesktop.org/show_bug.cgi?id=100243#c3">Comment # 3</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - Handle MT_TOOL_PALM" href="https://bugs.freedesktop.org/show_bug.cgi?id=100243">bug 100243</a> from <a class="email" href="mailto:aduggan@synaptics.com" title="Andrew Duggan <aduggan@synaptics.com>"> Andrew Duggan</a> <pre>As you may have seen ABS_MT_TOUCH_MAJOR/MINOR are set based on values that the firmware reports W/X and W/Y. The W is a representation of width, but it doesn't actually correspond with any sort of units. Older devices which use RMI4 function 11 report both W values in a single byte. Each value being 4 bits. That's why the max is set to 15. Newer devices which use F12 now have use a byte for each W value. Newer devices should have a larger max. The device I used to create the log used F12 which is why the actual values exceed the max.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>