From 7e3e92db14a32407590e6d48c76a9aff467e272f Mon Sep 17 00:00:00 2001
From: David Kebler <d@kebler.net>
Date: Mon, 15 May 2017 11:01:29 -0700
Subject: [PATCH] add documentation

---
 lib/mcp23008-17.js | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/lib/mcp23008-17.js b/lib/mcp23008-17.js
index ae47d6b..2a3388c 100644
--- a/lib/mcp23008-17.js
+++ b/lib/mcp23008-17.js
@@ -46,8 +46,14 @@ class MCP23008 extends Device {
           .then(() => {
             return this.inter(port).start()
               .then(() => {
+                this.inter(port).on('fired', () => {
+                  console.log(`interrupt port ${port}  hook me \n ${relays}`)
+                    // hook.bind(this)(port)
+
+                })
                 return Promise.resolve(`interrupt port ${port} started`)
               })
+              .catch(err => console.log("error:", err))
           })
         )
       }
@@ -83,7 +89,7 @@ class MCP23008 extends Device {
       for (let port in this.ports) {
         for (let setting in registers.pin_config) {
           let reg = registers.pin_config[setting]
-          if (port === 'B') { reg = reg + 0x10 } // TODO 0x10 should be based on chip config
+            // TODO 0x10 should be based on chip config
           let byte = 0;
           let pins = this.ports[port].allPins
           for (let i = 0; i < 8; i++) {
@@ -92,7 +98,7 @@ class MCP23008 extends Device {
           }
           //console.log(`port ${port} - setting ${setting} - reg ${reg} -  byte ${byte}`)
           jobs.push(
-            super.write(reg, byte).then(() => Promise.resolve(`config: wrote ${byte} to register ${reg} on port ${port}`))
+            super.write(portReg(reg, port), byte).then(() => Promise.resolve(`config: wrote ${byte} to register ${reg} on port ${port}`))
           )
         }
       }
@@ -104,8 +110,7 @@ class MCP23008 extends Device {
     let jobs = []
     let reg = registers.pin_cmd[cmd]
     for (let port in this.ports) {
-      jobs.push(() => super.read(reg))
-      reg += 0x10
+      jobs.push(() => super.read(portReg(reg, port)))
     }
     return _u.pSeries(jobs)
   }