* initial commit
* initial commit
* fixed indents
* spelling, capitalization, and order.
* added dota mode keymap, removed old comments
* fixed default keymap always having tilde, instead of grave accent and tilde. Improved dota keymap.
* lower does not change backspace to delete anymore
* corrected pgup/pgdown
* changed period on lower from numpad dot to regular dot
* added colemak and dvorak
* made colemak/dvorak border keys consistent with querty
* updated to match current practices, added custom metakeys for dvorak and colemak
* added disclaimer about audio
* renamed to lowercase
* replaced include guards with #pragma once
Co-Authored-By: rileyweber13 <rileyw13@protonmail.com>
* removed unncessary include
Co-Authored-By: rileyweber13 <rileyw13@protonmail.com>
* removed defines included in core
Co-Authored-By: rileyweber13 <rileyw13@protonmail.com>
* replace defines with an enum, switched from custom function to set_single_persistent_default_layer
* removed ifndef/include/endif left over from previous build system
* removed unnecessary ifdef block
* updated soungs to work with set_single_persistent_default_layer
* Add default value for IS_COMMAND for COMMAND feature
* Cleanup and consistency
* Update Templates to reflect change
* Fix IS_COMMAND in template
* Fix IS_COMMAND define
* Use consistent IS_COMMAND block in templates
* Remove unnecessary `#undef IS_COMMAND` directives
* Fix compile issue on orthodox
* Reomve IS_COMMAND option for newer boards
* Remove all existing definitions of IS_COMMAND if they use default LSHIFT and RSHIFT setting
* Remove a couple of additional IS_COMMAND defines
* Remove remaining redundant IS_COMMAND definitions
* Remove #undef IS_COMMAND from orthodox:drashna and whitefox:konstantin
* Remove multiple empty lines in modified config.h files
* Update additional boards
* Reomve IS_COMMAND from newer boards
* Update Alice keyboard
* Remove IS_COMMAND from additional boards
Jan 24th edition
* Eliminate separate slave loop
Both master and slave run the standard keyboard_task main loop now.
* Refactor i2c/serial specific code
Simplify some of the preprocessor mess by using common function names.
* Fix missing #endif
* Move direct pin mapping support from miniaxe to split_common
For boards with more pins than sense--sorry, switches.
* Reordering and reformatting only
* Don't run matrix_scan_quantum on slave side
* Clean up the offset/slaveOffset calculations
* Cut undebounced matrix size in half
* Refactor debouncing
* Minor fixups
* Split split_common transport and debounce code into their own files
Can now be replaced with custom versions per keyboard using
CUSTOM_TRANSPORT = yes and CUSTOM_DEBOUNCE = yes
* Refactor debounce for non-split keyboards too
* Update handwired/xealous to build using new split_common
* Fix debounce breaking basic test
* Dodgy method to allow a split kb to only include one of i2c/serial
SPLIT_TRANSPORT = serial or SPLIT_TRANSPORT = i2c will include only
that driver code in the binary.
SPLIT_TRANSPORT = custom (or anything else) will include neither, the
keyboard must supply it's own code
if SPLIT_TRANSPORT is not defined then the original behaviour (include
both avr i2c and serial code) is maintained.
This could be better but it would require explicitly updating all the
existing split keyboards.
* Enable LTO to get lets_split/sockets under the line
* Add docs for SPLIT_TRANSPORT, CUSTOM_MATRIX, CUSTOM_DEBOUNCE
* Remove avr-specific sei() from split matrix_setup
Not needed now that slave doesn't have a separate main loop.
Both sides (on avr) call sei() in lufa's main() after exiting
keyboard_setup().
* Fix QUANTUM_LIB_SRC references and simplify SPLIT_TRANSPORT.
* Add comments and fix formatting.
* Remove QUANTUM_DIR code blocks from keyboard rules
This commit removes the deprecated "QUANTUM_DIR" code block from
rules.mk files that affect entire keyboards.
* remove QUANTUM_DIR code blocks from rules for default keymaps
This commit removes the deprecated "QUANTUM_DIR" code block from
rules.mk files that affect default keymaps.
* remove QUANTUM_DIR code blocks from rules for user keymaps
This commit removes the deprecated "QUANTUM_DIR" code block from
rules.mk files that affect "user" keymaps. (It's actually any keymap
that isn't named `default`.)
* remove QUANTUM_DIR code blocks from rules for community layouts
This commit removes the deprecated "QUANTUM_DIR" code block from
rules.mk files for community layouts.
* remove QUANTUM_DIR code blocks from rules for userspaces
This commit removes the deprecated "QUANTUM_DIR" code block from
rules.mk files for userspaces.
* Use standard KC_ALGR, remove language-specific redefinitions
* Use ALGR instead of ALTGR in BÉPO and Canadian multilingual keymaps
* Remove BE_LALT, BE_LGUI aliases
* add temporary compile test shell script
* Extended support of SKIP_VERSION to make invariant compile results during testing.
* build_keyboard.mk, tmk_core/rules.mk: add LIB_SRC, QUANTUM_LIB_SRC support
Support compiled object enclosed in library.
e.g.
```
LIB_SRC += xxxx.c
xxxx.c --> xxxx.o ---> xxxx.a
```
* remove 'ifdef/ifndef USE_I2C' from quantum/split_common/{i2c|serial}.c
* add SKIP_DEBUG_INFO into tmk_core/rules.mk
When SKIP_DEBUG_INFO=yes is specified, do not use the -g option at compile time.
* tmk_core/rules.mk: Library object need -fno-lto
* add SKIP_DEBUG_INFO=yes
* remove temporary compile test shell script
* add '#define SOFT_SERIAL_PIN D0' to keyboards/lets_split/rev?/config.h
* quantum/split_common/serial.c: Changed not to use USE_I2C.
* Refactor lets split to use split common code
* Refactor lets split to use split common code
* Build fixes for OLED_sample keymap
* Build fixes for OLED_sample keymap - attempt to reduce firmware size
* keymap + alpha
* some fixes
* keymap + alpha
* some fixes
* drashna changes
* linked main Alpha repo in keyboards/alpha readme
* missed a spot
* there's another function called FUNC lol
* keymap + alpha
* some fixes
* keymap + alpha
* drashna changes
* Fixed include
* Revert "Fixed include"
This reverts commit ea92f261f86d8433eab313cde498adca1682a006.
* messed up my git, fixed include
* Remove chording as it is not documented, not used, and needs work.
* Make Leader Key an optional feature.
* Switch from `PREVENT_STUCK_MODIFIERS` to `STRICT_LAYER_RELEASE`
* Remove `#define PREVENT_STUCK_MODIFIERS` from keymaps.
* Put in my keymaps
* Fixed all but weird lets split issue
* Organized and tried to trobleshoot lets split
* Organized and tried to trobleshoot lets split
* Added bbaserdem keymaps
* Added bbaserdem keymaps
* Fixed stuff
* FIxed a filename error
* Lets split eh
* Finalized things regarding keymap
* Line ending stuff again
* Added Let's Split Eh? Files and updated #USE_IC2 checks to also include th EH revision (can only be used in I2C)
* Added personal keymap, updated some of the EH files
* Created new keyboard file for testing "lets_split_eh" will merge into lets_split once fully functional
* Added split code from lets_split, removed pro micro imports and LED code
THIS IS WORKING CODE, WITHOUT RGB AND BACKLIGHT
* Took back original Lets Slit files for the lets_split keyboard, working in the lets_split_eh folder for now
* Updated eh.c
* More rework of the I2C code, added global flags for split boards.
* Introduced RGB over I2C, having weird edge case issues at the moment though
* Fixed weird I2C edgecase with RGB, although still would like to track down route cause..
* Changed RGB keycodes (static ones) to activate on key-up instead of key-down to elimate weird ghosting issue over I2C
* Lots of changes, mainly externalized the Split keyboard code and added logic for only including when needed.
- Added makefile option "SPLIT_KEYBOARD" that when = yes will include the split keyboard files and custom matrix
- Split keyboard files placed into quantum/split_common/
- Added define option for config files "SPLIT_HAND_PIN" FOr using high/low pin to determine handedness, low = right hand, high = left hand
- Cleaned up split logic for RGB and Backlight so it is only exectuted / included when needed
* Updated documentation for the new makefile options and #defines specific to split keyboards
* Added a bit more info to docs, so people aren't confused
* Modifed Let's Split to use externalized code, also added left and right hand eeprom files to the split_common folder
* Removed some debugging from eh.c
* Small changes to keyboard configs. Also added a default keymap (just a copy of my that_canadian keymap).
* Added a README file to the Let's Split Eh?
* Changed it so RGB static updates are done on key-up ONLY for split boards rather than all boards. Also fixed leftover un-used variable in rgblight.c
* Updated default keymap and my keymap for Let's Split Eh? Updated the comments so it reflects RGB control, and removed audio functions.
* Fixed lets_split_eh not having a default version
* Removed "eh" references from lets_split folder for now
* Took lets_split folder from master to fix travis build errors, weird my local was overriding.
* Changed LAYOUT_ortho_4x12_kc -> LAYOUT_kc_ortho_4x12 to match bakingpy and others
* Removed rules.mk from my lets_split keymap, not needed
* Updated the config_options doc to better explain the usage of "#define SPLIT_HAND_PIN"
* slight tweaks to xd75 keymap
* update to config.h to remove undef of solenoid active
* code organization for userspace
* updates to userspace and keymaps
* add rgb to userspace and lets split
* add conditional around rgb functions in userpsace
* move rgb layer changes into layer_state_set_user
* Cheers let's split keymap
* fixed typo on norman layer of cheers keymap for let's split
* fixed right handed mappings for home row
* cheers keymap for let's split redefinition
* updated Cheers keymap for let's split
* cheers keymap for let's split updated with some terminal macros
* renamed cheers let's split keymap to a more appropriate normacos
* updated normacos keymap doc / removed non functional keys
* reset let's split rules to default values
* added more spotlight search macros
* normalized keymap comments
* Moved numpad on lower layer
* updated normacos layout and fixed some readme typos
* removed leftover merge diff
* added waits to macros that make use of SEND_STRING
* fixed wrong waits on macros that use SEND_STRING
* normalized macro comments after adding waits
* Put in my keymaps
* Fixed all but weird lets split issue
* Organized and tried to trobleshoot lets split
* Organized and tried to trobleshoot lets split
* Added bbaserdem keymaps
* Added bbaserdem keymaps
* Fixed stuff
* FIxed a filename error
* add not-so-minidox handwire keyboard
* corrected keymap
* multiple adjustments to not_so_minidox keyboard
* remove I2C master left define
* update default layer set function
* move solenoid code into userspace
* minor adjustments to config.h
* update keymaps to utilize userspace
* move features and config to userspace, correct build issue
* correct solenoid pin
* adjust defaults for solenoid pin and enable
* default solenoid to on for not_so_minidox
* disable RGBLIGHT_SLEEP for xd75
* tweaking solenoid enable/disable in userspace and keymaps
* Update default Nyquist revision
* LED slave fix
* Sync changes from lets_split
* Add needed check for debouncing
* Remove line that was setting PD2 pin and interfering with use of that pin
* Add backlight key to keymap
* Adding Rama M10-A Macropad
* ch-ch-ch changes...
* Major overhaul based on SMT's keymap.
* more changes.
* Moved the FKeys to the ADJUST layer.
* More rearranging.
* Alias in Atreus62 keymap to make it more legible
Added config.h to fix tapping_term issue for Caps Lock key in OSX
* Added OrthoDox layout.
* More layout changes.
* Fixing things with the keyboard.
* Finishing touches.
Set left-hand master in config.h
Embedded the arrow keys in keymap.c
* Revised keymap making this easier to use.
* additions and changes.
* changes to various keymaps.
* Minor adjustments to OrthoDox layout.
* Added Eco keymap. Updated Let's Split keymap.
* Added gherkin
* Removed my M10A keymap
* Planck Keymap Updates
Updated my Planck keymap and created a simple keymap for Seph's Preonic.
* Added readme
* readme fixes
* Update readme.md
more clarification
* Keymap Tweaks
Removed the Power button setting from the keymap. It was in a
horrible location. I'll work on getting it setup somewhere else
sometime later.
* Added Readme
I finally got around to adding a readme to this keymap. I've also added minor changes to the layout.
* Fixed Keymap Error
* Fixed Readme
* adding iris and levinson keymaps
* Tweaks to keymap
* added youngJZ keymap
* Changes to keymap
Added a readme.md
* Levinson changes
Added the readme.md and rules.mk files.
Configured RGB underglow and backlighting.
* fixed readme
* changes to keymaps
* Updated keymap
* Updated readme.md
* Updated Readme (again)
* Updated Readme
Fixed formatting. Again.
* Updated readme
This is the last readme update for this keyboard update. I hope.
* Added Contra keymap
* Kinesis Keymap Update
* Updated Keymaps
I've updated my Kinesis (Stapelberg) layout and my Clueboard 66 layout.
I've also updated my Kinesis Readme.
* Clueboard Keymap update
Added media keys to my Clueboard 66 Rev2 layout.
* Added keymap
Added Minidox keymap & rules.
Added user function to Let's Split keymap that turns off the red
LEDs on the Pro Micros.
* New Zen keymap
Added Zen keyboard to my list of keyboards, so had to generate a new
keymap for it.
Also adding some changes to my MiniDox keymap and config.h, as well
as my Levinson's config.h.
The config.h file changes enable ee_hands.
* A few changes for useability
I made a few changes to the Minidox keymap to see if I can't make it more useable.
I'm also working on streamlining the Zen keyboard keymap to reduce layers.
* Re-vamped Iris keymap.
* changes
* minor keymap change
This was a minor keymap change to use mod_tap for the backspace key:
ALT when held, BSPC when tapped.
* Added Fourier keymap
* Keymap Cleanup
Moved KC_ESC to KC_CAPS, and changed KC_ESC to KC_GRV
This is because of muscle memory, I kept hitting ESC when trying to hit TAB.
* Keymap Adjustments
Swapped Caps/Esc, put Caps in Raise/Lower layers, put Grv in normal
Esc position. Adjusted the readme.md to reflect these changes.
* minor tweaks
Added code to disable red ProMicro LEDs after flashing.
* Clean-up
* Corrections to keymap.
Fixed a foul-up in the Zen keymap where the lctrl was where the LOWER
should have been.
* Changes to make this fall in line with the new Layout features
* Moving to LAYOUTs for 4x12 boards
* fixed config.h file
* standardization changes
* Reverted Atreus62 keymap to LAYOUT format
* Switch Preonic and Nyquist to ortho_5x12
* Corrections to config.h
* config.h file tweaks
* config.h file tweaks
* copied lets_slit to splinter
* initial splinter layout
* remove unused keymaps
* implemented second half of the keyboard
* initial definition of tap dance
* the tap dance is working now
tap dance for right hand 4c 2r
hold - shift
single tap - n
double tap - ñ
triple tap - Ñ
* clear the keymap.c
* put the tap state on to array
* the n tilde tap dance should produce right shift if hold
* add esc grv tap dance
* remove the defined SS_LSFT on tap_dance.h
because it was added on the quantum.h
* minor cleanup for the keymap
* use the X_* on tap dance
* added super alt tap dance
* use the NO_TAP on tap dance reset
* allow track what rows and cols pressed
* added the RGUI_ALT
* keymap arrangement
* use i2c
* initial rgb
* layer colors
* initial rgb pressed key
* set the layers led
* SUCCESS!!!
* cleaning
* improve shifted layer
* led brightness
* initial caps rainbow
* rename SET_LED_RGB to SET_LED_RGB_HEX
* clean the SET_LED_RGB_HEX and added SET_LED_RGB
* clean format
* caps lock rainbow
* rename key_led to set_key_led
* caps lock rainbow enhanced
* make varibiables static
* change back the loop max value to 360 for the rainbow
* add scroll lock to the rainbow led
* fix pos calculation of right hand board
* add ative keys and make rainbow color can override by key press
* remove the TOTAL_MATRIX_POINTS
* some improvments for the rgb
* call the rgblight_set on the process_record_user
* some enhancement for the leds
* pass the dim value to set_layer_led and limit the brightness on _VL
set the brightness to 2 if the dim value is less than 2 because
their is not enought power for the leds.
* remove the rgb steps on the config
* use the non rev config
* remove all the revisions
* favor i2c instead of serial and remove all the ref for the serial
* clang formatting
* allow to save to eeprom the brightness value
* add bootloader caterina this will enable soft reset key
* initial commit for the userspace
* added my own keymap for splinter
* first working userspace
* move splinter to handwired keyboards
* handwired splinter default keymap
* move some config to my keymap
* cleanup some headers on the keymap
* move the EECONFIG_RGB_DIM to the user space
* I fix remove the GUI on SPC and ENT
* remove the default include on tap_dance.c
* add lights.c and refactoring
* fix wrong source for led index
* seperate the variable on set_layer_led for readabilty.
* set the usb max power consumption to 50
* fix led lighting
* add new enums for tap dance
* use romeve path avr on eeprom.h
* fix wrong spelling on TP names
* changed the tap dance
* allow to set rainbow on some pressed key
* add reset key
* fix error on matrix.c if ROW2COL is used
* add extraflags -flto
* See e2352d4
* Got no love from i2c, serial to the rescue
* Fix the led will lit up to color red after boot
* Trial if the power can handle yellow color at full
* Add comment
* Use EE_HANDS
* add config.h in the use space
* KC_N on BL should wrap in SFT_T
* See d13567d, put it back but increase 1 level
* Fix led soldering mistake
* set the tapping_term to 100
* Use TT for the changing the layer
* Remove the changing space to enter and vice version on BL and UL
* Increate the tapping term
* Use tap dance on changing layer
* Add assorted layer
* propery way to tapdance
* Remove DA_EGRV
This also fix the wrong placement of the reset and dance lspr should register
the KC_LGUI on finished not unregistered.
* Remove the media control to the up and down layer
* Remove the interrupted state of the tap dance
* swapt the space and enter on to th caps
* Shorthand
* Keymap update
* My keymap for lets_split
* cleaning
* Cheers let's split keymap
* fixed typo on norman layer of cheers keymap for let's split
* fixed right handed mappings for home row
* cheers keymap for let's split redefinition
* updated Cheers keymap for let's split
* cheers keymap for let's split updated with some terminal macros
* renamed cheers let's split keymap to a more appropriate normacos
* updated normacos keymap doc / removed non functional keys
* reset let's split rules to default values
* added more spotlight search macros
* normalized keymap comments
* Moved numpad on lower layer
* mf68_ble did not have the correct .c and .h files
* Fix JC65 KEYMAP to LAYOUT
* Change KEYMAP to LAYOUT for s60_x
* Convert KEYMAP to LAYOUT for lets_split boards
* Convert KEYMAP to LAYOUT
* more fixes to keymap for iris
* convert KEYMAP to LAYOUT for levinson keyboard
* change losinggeneration's KEYMAP to LAYOUT
* convert KEYMAP to LAYOUT
* convert KEYMAP to LAYOUT for nyquist
* convert KEYMAP to LAYOUT
* convert KEYMAP to LAYOUT for viterbi
* convert KEYMAP to LAYOUT
* convert KEYMAP and its subsidiries to the LAYOUT standard
* convert KEYMAP and its subsidiries to the new LAYOUT standard
* Added cpeters1982 keymap folder in lets_split
* Deleted tap dance. need to research error
* Changed keymap to better facilitate SpaceFn
* Trying to get backlighting to work
* Added RGB backlight support
* cleared some cache files per Drashna's instructions
* initial branch
* lazy-push
* Fix schema
Updated README, readded DVORAK to keymap.
Updated dir name to lowercase.
* removed executable bit
* testing switched L_GUI position
* adding new layout for the planck that helps when coming from the pok3r
* Fixing the function layer
* Update readme.md
* Update keymap.c
Making some small adjustments
* Update keymap.c
switching GUI and Esc
* Update keymap.c
* adding mod tap on left and right shift
* adding mod tap on left and right shift
* poker keymap for lets split
* fixing the FN layer
* removing unused file
* pull fuse settings for bootloader jump
* fix 32a chips
* make automatic bootloader selection optional
* quantify bootloaders
* fixs #164, speeds up dfu reset
* fix for chips w/o usb
* missing an n
* fix bootloader sizes, use words for addresses
* fix bmini, pearl, and [[ issue, make things quiet
* ignore avr errors on arm for now
* update settings for the light
* document bootloader stuff
* add bootloader title
* redo make args to use colons, better folder structuring system [skip ci]
* don't put spaces after statements - hard lessons in makefile development
* fix-up some other rules.mk
* give travis a chance
* reset KEYMAPS variable
* start converting keyboards to new system
* try making all with travis
* redo make args to use colons, better folder structuring system [skip ci]
* don't put spaces after statements - hard lessons in makefile development
* fix-up some other rules.mk
* give travis a chance
* reset KEYMAPS variable
* start converting keyboards to new system
* try making all with travis
* start to update readmes and keyboards
* look in keyboard directories for board.mk
* update visualizer rules
* fix up some other keyboards/keymaps
* fix arm board ld includes
* fix board rules
* fix up remaining keyboards
* reset layout variable
* reset keyboard_layouts
* fix remainging keymaps/boards
* update readmes, docs
* add note to makefile error
* update readmes
* remove planck keymap warnings
* update references and docs
* test out tarvis build stages
* don't use stages for now
* don't use stages for now
neue Datei: keyboards/lets_split/keymaps/DE_simple/config.h
neue Datei: keyboards/lets_split/keymaps/DE_simple/keymap.c
neue Datei: keyboards/lets_split/keymaps/DE_simple/rules.mk
* slight modifier changes; added plover and reusing jack's default planck keymap as the basis
* space is not shift when held anymore
* added fabian layout (based on jack's default)
* changed fabian layout (based on jack's default)
* changed fabian layout (based on jack's default)
* Fix mbsurfer let's split layout RGB indicators when both lower and raise are pressed
* Update mbsurfer let's split keymap with new RGB key codes for modes
* Clean up mbsurfer keymap matrix layout
* add new RGB keycodes and clean up lets split keymap
* extraneous cases
* More cleanup and added macro
* one more macro
* cleaned up my planck keymap and added macros
* Transitioned planck keymap to new formatting / audio modes based on new default
* Remove extraneous newline in song list, add keycodes missed in previous commit
* error in graphical representation of keycodes
* Remove all Makefiles from the keyboards directory.
* update keymaps added in the last 8 days
* Ignore keyboard/keymap makefiles
* update hand_wire to reflect our new Makefile-less reality
* Update the make guide to reflect the new reality
* move planck keymap options to rules.mk
* update planck keymaps 4real
* trigger travis
* add back build_keyboard.mk
* restore changes to build_keyboard
* copied mjt keymaps from archive
* All mjt boards now compile
* fixed jd45-mjt breathing
* Updates to fix SpaceFN but not tested yet.
* Still missing either spacebar or an adjacent keypress.
* Debugging rigged up for use with hid_listen.
* Reverted the default keymap to use tap_layer_key rather than custom. Moved custom approach to keymap_debug.c
* Fixed the lower-left side of the keymap, which needed more spacers due to the matrix being directly put into the array rather than using the keymap function.
* Cleaned up JD45 keymap that uses tapkey.
* Redid minivan keymap with numsym rather than raise/lower.
Untested.
* Created my MJT keymap for HHKB
Enabled dynamic macros and moved
somoe of the shortcuts around.
* Minor keymap fixes to make them compile without errors.
* Added home/end to right arrow cluster on DYN layer.
* Added more keys to fn and dyn layers.
* It wasn't using my custom layer last time somehow...? Now it will.
* Compiled and installed at end of day on 8/23
* Moved macros to FKEY layer because Adjust was too hard to get into and out of without some sort of feedback.
* Fixed volume controls... were reversed and disabled.
* Added F13-F15 back to fkeys layer in Minivan
* Created new Planck Keymap that uses the NumSym and FKeys layer approach like the Minivan.
* Removed DYN layer.
* Fixed diagram in planck numsym.
* Cleanup for pull request.
* Roadkit flip phone warning.
* Replaced PLAY_NOTES_ARRAY to PLAY_SONG
* reset the submodules
* checked out specific commits for submodules
* Removed debugging from JD45 shared config.h
* Moved custom rules.mk to apropriate keymap
Reset the shared rules.mk file.
* Trailing return issue in rules.mk
Gotta make for a smooth pull request :-)
* include variables and .h files as pp directives
* start layout compilation
* split ergodoxes up
* don't compile all layouts for everything
* might seg fault
* reset layouts variable
* actually reset layouts
* include rules.mk instead
* remove includes from rules.mk
* update variable setting
* load visualizer from path
* adds some more examples
* adds more layouts
* more boards added
* more boards added
* adds documentation for layouts
* use lowercase names for LAYOUT_
* add layout.json files for each layout
* add community folder, default keymaps for layouts
* touch-up default layouts
* touch-up layouts, some keyboard rules.mk
* update documentation for layouts
* fix up serial/i2c switches