diff options
Diffstat (limited to 'recipes-bsp/formfactor/formfactor')
| -rw-r--r-- | recipes-bsp/formfactor/formfactor/machconfig | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/recipes-bsp/formfactor/formfactor/machconfig b/recipes-bsp/formfactor/formfactor/machconfig new file mode 100644 index 00000000..73695fac --- /dev/null +++ b/recipes-bsp/formfactor/formfactor/machconfig @@ -0,0 +1,39 @@ +# Note: superuser permission is required to run usbhid-dump +# successfully. + +# HEX keys are according to the USB HID spec and USB HID usage table +# We can add more keys as needed in the future. + +# This test may not be very accurate, as we only look for the first +# two lines of a descriptor section. Example: +# +# 001:003:000:DESCRIPTOR 1460501386.337809 +# 05 01 09 02 A1 01 09 01 A1 00 05 09 19 01 29 03 +# 15 00 25 01 95 03 75 01 81 02 .. .. .. .. .. .. +# .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. +# +# By doing so we eliminate false matches when HEX keys are in the lines +# in the middle of the whole descriptor section. + +if type usbhid-dump &>/dev/null; then + if USBHID_DUMP_OUTPUT=$(usbhid-dump -e descriptor 2>/dev/null|grep -A1 DESCRIPTOR); then + # checker for generic USB HID keyboard + USBHID_KBD_CMD="grep -E '^ 05 01 09 06'" + + # checker for touch screen + USBHID_TS_CMD="grep -E '^ 05 0D 09 04'" + + if echo "$USBHID_DUMP_OUTPUT"|eval $USBHID_TS_CMD &>/dev/null; then + HAVE_TOUCHSCREEN=1 + fi + + if echo "$USBHID_DUMP_OUTPUT"|eval $USBHID_KBD_CMD &>/dev/null; then + HAVE_KEYBOARD=1 + else + # config script in OE will set HAVE_KEYBOARD=1 + # if we don't set any value. We have to explicitly + # tell it when keyboard is not detected. + HAVE_KEYBOARD=0 + fi + fi +fi |