Consolidate device discovery into the rmidevice library

3 files changed, 34 insertions, 1 deletions

diff --git a/rmidevice/hiddevice.cpp b/rmidevice/hiddevice.cpp
index 7fc03c5..5bb804d 100644
--- a/rmidevice/hiddevice.cpp
+++ b/rmidevice/hiddevice.cpp
@@ -762,4 +762,33 @@ bool HIDDevice::WaitForHidRawDevice(int notifyFd, std::string & deviceName,
 			}
 		}
 	}
-}
\ No newline at end of file
+}
+
+bool HIDDevice::FindDevice()
+{
+	DIR * devDir;
+	struct dirent * devDirEntry;
+	char deviceFile[PATH_MAX];
+	bool found;
+	int rc;
+
+	devDir = opendir("/dev");
+	if (!devDir)
+		return -1;
+
+	while ((devDirEntry = readdir(devDir)) != NULL) {
+		if (strstr(devDirEntry->d_name, "hidraw")) {
+			snprintf(deviceFile, PATH_MAX, "/dev/%s", devDirEntry->d_name);
+			rc = Open(deviceFile);
+			if (rc != 0) {
+				continue;
+			} else {
+				found = true;
+				break;
+			}
+		}
+	}
+	closedir(devDir);
+
+	return found;
+}
diff --git a/rmidevice/hiddevice.h b/rmidevice/hiddevice.h
index af1a385..6673c10 100644
--- a/rmidevice/hiddevice.h
+++ b/rmidevice/hiddevice.h
@@ -48,6 +48,8 @@ public:
 
 	virtual void PrintDeviceInfo();
 
+	virtual bool FindDevice();
+
 private:
 	int m_fd;
 
diff --git a/rmidevice/rmidevice.h b/rmidevice/rmidevice.h
index c2b004c..af938ec 100644
--- a/rmidevice/rmidevice.h
+++ b/rmidevice/rmidevice.h
@@ -70,6 +70,8 @@ public:
 
 	unsigned int GetNumInterruptRegs() { return m_numInterruptRegs; }
 
+	virtual bool FindDevice() = 0;
+
 protected:
 	std::vector<RMIFunction> m_functionList;
 	unsigned char m_manufacturerID;