diff --git a/device.c b/device.c
index 7c51894..fab5b8d 100644
--- a/device.c
+++ b/device.c
@@ -32,6 +32,15 @@ int DeviceOpen(const char* device_path)
 #endif
 }
 
+void DeviceClose(int device_fd)
+{
+#if defined(__linux__) && !defined(__ANDROID__)
+    return LinuxCloseDevice(device_fd);
+#else
+    return -1;
+#endif
+}
+
 int32_t GetDeviceType(const char* device_path)
 {
 #if defined(__linux__) && !defined(__ANDROID__)
diff --git a/dicmote.h b/dicmote.h
index d7e4805..4f670ba 100644
--- a/dicmote.h
+++ b/dicmote.h
@@ -62,6 +62,7 @@
 #define DICMOTE_PACKET_TYPE_RESPONSE_GET_FIREWIRE_DATA 22
 #define DICMOTE_PACKET_TYPE_COMMAND_GET_PCMCIA_DATA 23
 #define DICMOTE_PACKET_TYPE_RESPONSE_GET_PCMCIA_DATA 24
+#define DICMOTE_PACKET_TYPE_COMMAND_CLOSE_DEVICE 25
 #define DICMOTE_PROTOCOL_MAX 1
 #define DICMOTE_PACKET_NOP_REASON_OOO 0
 #define DICMOTE_PACKET_NOP_REASON_NOT_IMPLEMENTED 1
@@ -418,12 +419,18 @@ typedef struct
     char            cis[65536];
 } DicPacketResGetPcmciaData;
 
+typedef struct
+{
+    DicPacketHeader hdr;
+} DicPacketCmdClose;
+
 #pragma pack(pop)
 
 DeviceInfoList* ListDevices();
 void            FreeDeviceInfoList(DeviceInfoList* start);
 uint16_t        DeviceInfoListCount(DeviceInfoList* start);
 int             DeviceOpen(const char* device_path);
+void            DeviceClose(int device_fd);
 int32_t         GetDeviceType(const char* device_path);
 int32_t         SendScsiCommand(int       device_fd,
                                 char*     cdb,
diff --git a/linux/device.c b/linux/device.c
index fcb6311..e50553c 100644
--- a/linux/device.c
+++ b/linux/device.c
@@ -39,6 +39,8 @@ int LinuxOpenDevice(const char* device_path)
     return fd;
 }
 
+void LinuxCloseDevice(int device_fd) { close(device_fd); }
+
 int32_t LinuxGetDeviceType(const char* device_path)
 {
 #ifdef HAS_UDEV
diff --git a/linux/linux.h b/linux/linux.h
index e8fab46..33a0a8b 100644
--- a/linux/linux.h
+++ b/linux/linux.h
@@ -24,7 +24,8 @@
 
 DeviceInfoList* LinuxListDevices();
 
-int LinuxOpenDevice(const char* device_path);
+int  LinuxOpenDevice(const char* device_path);
+void LinuxCloseDevice(int device_fd);
 
 int32_t LinuxGetDeviceType(const char* device_path);
 
diff --git a/worker.c b/worker.c
index 1359830..511deb0 100644
--- a/worker.c
+++ b/worker.c
@@ -1019,6 +1019,10 @@ void* WorkingLoop(void* arguments)
                     free(pkt_cmd_sdhci);
                     free(pkt_res_sdhci);
                     continue;
+                case DICMOTE_PACKET_TYPE_COMMAND_CLOSE_DEVICE:
+                    DeviceClose(device_fd);
+                    skip_next_hdr = 1;
+                    continue;
                 default:
                     pkt_nop->reason_code = DICMOTE_PACKET_NOP_REASON_NOT_RECOGNIZED;
                     memset(&pkt_nop->reason, 0, 256);