Added function calls to detach/attach the kernel driver in linux. Als…

…o added a 99-polar.rules file that MUST be copied to the /etc/udev/rules directory in order to allow non-root users to run the downloader. Unfortunately there is no way around this as the default USB permissions in linux only allow root write access. Once the .rules file has been added the downloader works perfect on my test system, Linux Mint 17 64 bit. It's statically linking against libusb right now to make it easier to deploy in the new few days. For now it's only available as source for linux, but an intrepid user should be good to go and start downloading files on their linux machines.
profanum429 · Aug 2, 2014 · f0574f2 · f0574f2
1 parent 6b995a3
commit f0574f2
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Showing 3 changed files with 23 additions and 0 deletions.
diff --git a/99-polar.rules b/99-polar.rules
@@ -0,0 +1 @@
+SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", ATTRS{idVendor}=="0da4", ATTRS{idProduct}=="0008", MODE="0666"
diff --git a/native_usb.cpp b/native_usb.cpp
@@ -1,5 +1,6 @@
 #include "native_usb.h"
 #include <QByteArray>
+#include <unistd.h>
 
 #if defined(Q_OS_MAC)
 extern "C"
@@ -36,6 +37,15 @@ int native_usb::open_usb(int vid, int pid)
         return -1;
     }
 
+#if defined(Q_OS_LINUX)
+    r = libusb_detach_kernel_driver(usb, 0);
+    if(r != 0)
+    {
+        qDebug("Detach Kernel Driver: %s", libusb_error_name(r));
+        return -1;
+    }
+#endif
+
     r = libusb_claim_interface(usb, 0);
     if(r != 0)
     {
@@ -48,7 +58,12 @@ int native_usb::open_usb(int vid, int pid)
     libusb_close(usb);
     usb = NULL;
 
+#if defined(Q_OS_WIN)
     Sleep(500);
+#endif
+#if defined(Q_OS_LINUX)
+    usleep(500000);
+#endif
 
     qDebug("Reopening the USB device...");
     usb = libusb_open_device_with_vid_pid(NULL, vid, pid);
@@ -65,7 +80,12 @@ int native_usb::open_usb(int vid, int pid)
         return -1;
     }
 
+#if defined(Q_OS_WIN)
     Sleep(500);
+#endif
+#if defined(Q_OS_LINUX)
+    usleep(500000);
+#endif
 
     return 0;
 #endif

diff --git a/v800_downloader.pro b/v800_downloader.pro
@@ -37,3 +37,5 @@ UI_DIR = $$DESTDIR/tmp
 osx:LIBS += -framework CoreFoundation -framework IOKit
 win32:INCLUDEPATH += C:/Qt/libusb-1.0
 win32:LIBS += C:/Qt/libusb-1.0/libusb-1.0.a
+unix:!macx:INCLUDEPATH += /usr/local/include/libusb-1.0
+unix:!macx:LIBS += /usr/local/lib/libusb-1.0.a -ludev
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", ATTRS{idVendor}=="0da4", ATTRS{idProduct}=="0008", MODE="0666"