2 files changed, 37 insertions, 13 deletions
diff --git a/packages/subproviders/src/globals.d.ts b/packages/subproviders/src/globals.d.ts
index 362587e08..3e50bedaa 100644
--- a/packages/subproviders/src/globals.d.ts
+++ b/packages/subproviders/src/globals.d.ts
@@ -1,27 +1,56 @@
 /// <reference types='chai-typescript-typings' />
 /// <reference types='chai-as-promised-typescript-typings' />
 declare module 'dirty-chai';
-declare module 'ledgerco';
-declare module 'ethereumjs-tx';
 declare module 'es6-promisify';
 
 // tslint:disable:max-classes-per-file
 // tslint:disable:class-name
 // tslint:disable:completed-docs
 
+// Ethereumjs-tx declarations
+declare module 'ethereumjs-tx' {
+    class EthereumTx {
+        public raw: Buffer[];
+        public r: Buffer;
+        public s: Buffer;
+        public v: Buffer;
+        public serialize(): Buffer;
+        constructor(txParams: any);
+    }
+    export default EthereumTx;
+}
+
 // Ledgerco declarations
+interface ECSignatureString {
+    v: string;
+    r: string;
+    s: string;
+}
+interface ECSignature {
+    v: number;
+    r: string;
+    s: string;
+}
 declare module 'ledgerco' {
     interface comm {
-        close_async: Promise<void>;
-        create_async: Promise<void>;
+        close_async(): Promise<void>;
     }
     export class comm_node implements comm {
-        public create_async: Promise<void>;
-        public close_async: Promise<void>;
+        public static create_async(timeoutMilliseconds?: number): Promise<comm_node>;
+        public close_async(): Promise<void>;
     }
     export class comm_u2f implements comm {
-        public create_async: Promise<void>;
-        public close_async: Promise<void>;
+        public static create_async(): Promise<comm_u2f>;
+        public close_async(): Promise<void>;
+    }
+    export class eth {
+        public comm: comm;
+        constructor(comm: comm);
+        public getAddress_async(path: string, display?: boolean, chaincode?: boolean):
+               Promise<{publicKey: string; address: string}>;
+        public signTransaction_async(path: string, rawTxHex: string): Promise<ECSignatureString>;
+        public getAppConfiguration_async(): Promise<{ arbitraryDataEnabled: number; version: string }>;
+        public signPersonalMessage_async(path: string, messageHex: string): Promise<ECSignature>;
     }
 }
 
@@ -66,6 +95,3 @@ declare module 'web3-provider-engine' {
   }
   export = Web3ProviderEngine;
 }
-// tslint:enable:max-classes-per-file
-// tslint:enable:class-name
-// tslint:enable:completed-docs
diff --git a/packages/subproviders/src/types.ts b/packages/subproviders/src/types.ts
index 4564c5229..43ee32870 100644
--- a/packages/subproviders/src/types.ts
+++ b/packages/subproviders/src/types.ts
@@ -2,8 +2,6 @@ import * as _ from 'lodash';
 import * as Web3 from 'web3';
 
 export interface LedgerCommunicationClient {
-    exchange: (apduHex: string, statusList: number[]) => Promise<any[]>;
-    setScrambleKey: (key: string) => void;
     close_async: () => Promise<void>;
 }