https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=244718
Bug ID: 244718
Summary: [patch] WMT driver usb framelength
Product: Base System
Version: CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: usb
Assignee: [email protected]
Reporter: [email protected]
Attachment #212306 text/plain
mime type:
Created attachment 212306
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=212306&action=edit
Patch for wmt driver.
Attached patch diff from r358834
CiVUE ACB-C27003 with controller EETI EXC80W32/P80H32 (newer eGalax
multitouch).
If usb frame length is set to 1024 bytes (WMT_BSIZE) the EETI controller will
pack multiple touch events in the packet and the current code will only process
the first touch event. (line 500: usbd_copy_out will only copy the first 64
bytes). As a result some important events are lost like releasing the finger
from the touchscreen :)
Just let the hardware report its maximum packet size.
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