diff options
Diffstat (limited to 'lib/support/drivers/hotplug/button.lua')
| -rw-r--r-- | lib/support/drivers/hotplug/button.lua | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/lib/support/drivers/hotplug/button.lua b/lib/support/drivers/hotplug/button.lua deleted file mode 100644 index 9ddba48..0000000 --- a/lib/support/drivers/hotplug/button.lua +++ /dev/null @@ -1,32 +0,0 @@ -local device = _G - -local RD_VERSION=string.char(0x00) -local GET_VALUE=string.char(0x01) -local string_byte=string.byte - --- description: lets us know button module's version -api={} -api.getVersion = {} -api.getVersion.parameters = {} -- no input parameters -api.getVersion.returns = {[1]={rname="version", rtype="int"}} -api.getVersion.call = function () - device:send(RD_VERSION) -- operation code 0 = get version - local version_response = device:read(3) -- 3 bytes to read (opcode, data) - if not version_response or #version_response~=3 then return -1 end - local raw_val = (string_byte(version_response,2) or 0) + (string_byte(version_response,3) or 0)* 256 - return raw_val -end - --- description: lets us know button's current status --- input: empty --- output: button's current status. Possible status: 1 pressed - 0 not pressed -api.getValue = {} -api.getValue.parameters = {} -- no input parameters -api.getValue.returns = {[1]={rname="state", rtype="int"}} -api.getValue.call = function () - device:send(GET_VALUE) -- operation code 1 = get button's status - local sen_dig_response = device:read(2) -- 2 bytes to read (opcode, data) - if not sen_dig_response or #sen_dig_response~=2 then return -1 end - local raw_val = string_byte(sen_dig_response, 2) or 0 -- keep data - return raw_val -end |