Update README.md

README.md

@@ -189,18 +189,22 @@ if "model" is not set or is not recognized, then default "I2S" is used. The opti
 
 So far, TAS57xx, TAS5713, AC101, WM8978 and ES8388 are recognized models where the proper init sequence/volume/power controls are sent. For other codecs that might require an I2C commands, please use the parameter "dac_controlset" that allows definition of simple commands to be sent over i2c for init, power, speaker and headset on and off using a JSON syntax:
 ```json
-{ <command>: [ {"reg":<register>,"val":<value>,"mode":<nothing>|"or"|"and"}, ... {{"reg":<register>,"val":<value>,"mode":<nothing>|"or"|"and"} ],
-  <command>: [ {"reg":<register>,"val":<value>,"mode":<nothing>|"or"|"and"}, ... {{"reg":<register>,"val":<value>,"mode":<nothing>|"or"|"and"} ],
+{ <command>: [ <item1>, <item2>, ... <item3> ],
+  <command>: [ <item1>, <item2>, ... <item3> ],
   ... }
 ```
-Where `<command>` is one of init, poweron, poweroff, speakeron, speakeroff, headseton, headsetoff and `<key>` can be reg, delay or gpio (see below)
+Where `<command>` is one of init, poweron, poweroff, speakeron, speakeroff, headseton, headsetoff. Item is any of the following elements
+```
+{"reg":<register>,"val":<value>,"mode":<nothing>|"or"|"and"}
+{"gpio":<gpio>,"level":0|1}
+{"delay":<ms>}
+```
+This is standard JSON notation, so if you are not familiar with it, Google is your best friend. Be aware that the '...' means you can have as many entries as you want, it's not part of the syntax. Every section is optional, but it does not make sense to set i2c in the 'dac_config' parameter and not setting anything here. 
 
-This is standard JSON notation, so if you are not familiar with it, Google is your best friend. Be aware that the '...' means you can have as many entries as you want, it's not part of the syntax. Every section is optional, but it does not make sense to set i2c in the 'dac_config' parameter and not setting anything here. The parameter 'mode' allows to *or* the register with the value or to *and* it. Don't set 'mode' if you simply want to write. The 'val parameter can be an array [v1, v2,...] to write a serie of bytes in a single i2c burst (in that case 'mode' is ignored). **Note that all values must be decimal**. You can use a validator like [this](https://jsonlint.com) to verify your syntax
+The `reg` key allow to write registers on i2c bus. The parameter 'mode' allows to *or* the register with the value or to *and* it. Don't set 'mode' if you simply want to write. The 'val parameter can be an array [v1, v2,...] to write a serie of bytes in a single i2c burst (in that case 'mode' is ignored). **Note that all values must be decimal**. You can use a validator like [this](https://jsonlint.com) to verify your syntax. The `gpio` key is simply to set a gpio as part of DAC action and `delay` allows a pause between elements.
 
 The 'power' command is used when powering on/off the DAC after the idle period (see -C option of squeezelite) and the 'speaker/headset' commands are sent when switching between speakers and headsets (see headset jack detection).
 
-There is also the option to add a delay between registers read/write using the key `"delay":<ms>` and set a GPIO using the key `"gpio":<gpio>`
-
 NB: For named configurations ((SqueezeAMP, Muse ... all except I2S), all this is ignored. For know codecs, the built-in sequences can be overwritten using dac_controlset
 
 **Please note that you can not use the same GPIO or port as the I2C.**