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Diffstat (limited to 'protocol/usb_hid/README')
| -rw-r--r-- | protocol/usb_hid/README | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/protocol/usb_hid/README b/protocol/usb_hid/README new file mode 100644 index 0000000000..0d2efc2aa2 --- /dev/null +++ b/protocol/usb_hid/README @@ -0,0 +1,47 @@ +USB HID protocol +================ +Host side of USB HID keyboard protocol implementation. +Only standard HID Boot mode is supported at this time. This means most of normal keyboards are supported while proprietary >6KRO and NKRO is not. + +Third party Libraries +--------------------- +USB_Host_Shield_2.0 + Circuits@Home repository is git-submoduled. Do git submodule init & update to get the content. + https://github.com/felis/USB_Host_Shield_2.0 + +arduino-1.0.1 + Arduino files copied from: + https://github.com/arduino/Arduino/hardware/arduino/{cores,variants} + + +Test build +---------- +In test directory; + $ make + $ DEV=/dev/ttyACM0 make program + +You can see HID keyboard reports on debug output. + + +Restriction and Bug +------------------- +Not supported/confirmed yet. + Hub, suspend, keyboard LED + +Switching power on VBUS: + To power reset device. + http://www.circuitsathome.com/camera-control/simulating-cable-disconnect-on-usb-host-shield-2-0 + This is needed for a device which are not initilized with 'USB Bus Reset'(long SE0) + +Can't bus-reset a keyboard which already attached on bus properly. + Slow start up of Leonardo's bootloader causes this? + Need to unplug/plug a keyboard after firmware starts up. + MAX3421E doesn't work SAMPLEBUS well to know whether device connected or not. + +Keyboard with other endpoints than boot keyboard may go wrong. + On my keyboard with mouse key the converter locks up when using mouse key function. + +Can't compile on Windows filesystem. + On Linux no problem. + Windows doesn't know difference between common/print.h and arduino/Print.h. + Change file name common/print.h to console.h ? |