aboutsummaryrefslogtreecommitdiffstats
path: root/src/librtlsdr.c
diff options
context:
space:
mode:
authorSteve Markgraf <steve@steve-m.de>2013-06-04 14:47:16 +0200
committerSteve Markgraf <steve@steve-m.de>2013-06-04 20:57:43 +0200
commit3e17ef2b55d80237da9766f3464ae784448a23e6 (patch)
treec76d57326e7ee9cf77815a47512aa4dabd510af0 /src/librtlsdr.c
parentce341fe53bb235f1c8d848ae850ebc136b08f563 (diff)
lib: don't detach kernel driver by default
Since this feature also disconnects running instances of librtlsdr that claimed the device, it is now disabled by default and can only be enabled at compile time. To enable it when building with cmake: cmake . -DDETACH_KERNEL_DRIVER=ON To enable it when building with automake: ./configure --enable-driver-detach Signed-off-by: Steve Markgraf <steve@steve-m.de>
Diffstat (limited to 'src/librtlsdr.c')
-rw-r--r--src/librtlsdr.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/librtlsdr.c b/src/librtlsdr.c
index 2f5d90a..ddebb48 100644
--- a/src/librtlsdr.c
+++ b/src/librtlsdr.c
@@ -1351,12 +1351,22 @@ int rtlsdr_open(rtlsdr_dev_t **out_dev, uint32_t index)
if (libusb_kernel_driver_active(dev->devh, 0) == 1) {
dev->driver_active = 1;
+
+#ifdef DETACH_KERNEL_DRIVER
if (!libusb_detach_kernel_driver(dev->devh, 0)) {
fprintf(stderr, "Detached kernel driver\n");
} else {
fprintf(stderr, "Detaching kernel driver failed!");
goto err;
}
+#else
+ fprintf(stderr, "\nKernel driver is active, or device is "
+ "claimed by second instance of librtlsdr."
+ "\nIn the first case, please either detach"
+ " or blacklist the kernel module\n"
+ "(dvb_usb_rtl28xxu), or enable automatic"
+ " detaching at compile time.\n\n");
+#endif
}
r = libusb_claim_interface(dev->devh, 0);
@@ -1484,12 +1494,14 @@ int rtlsdr_close(rtlsdr_dev_t *dev)
libusb_release_interface(dev->devh, 0);
+#ifdef DETACH_KERNEL_DRIVER
if (dev->driver_active) {
if (!libusb_attach_kernel_driver(dev->devh, 0))
fprintf(stderr, "Reattached kernel driver\n");
else
fprintf(stderr, "Reattaching kernel driver failed!\n");
}
+#endif
libusb_close(dev->devh);