Hi.

Since there's no discussion, I'll write a little more about that extra delay issue.

I noticed there is a 1 second delay in librtlsdr between calling rtlsdr_cancel_async and releasing from rtlsdr_read_async. I'm writing a

1) I suggest to incorporate the first of my two fixes into the master branch. The first fix sholdn't break anything, it works well for me and fixes the delay bug. I moved on to my other projects, and ain't going to investigate this problem any more.

And the two possible fixes for 1 second delay bug depending on the answer are (diffs): === 1630a1631

...

struct timeval tv_nb = { 0, 0 };

1696c1697

< libusb_handle_events_timeout(dev->ctx, &tv);

...

		libusb_handle_events_timeout(dev->ctx, &tv_nb);

===

2) There was an error in my second fix: I obviously should have removed only the libusb_handle_events_timeout line, not the whole `if'.

=== 1694,1698d1693 < < if (dev->dev_lost || RTLSDR_INACTIVE == next_status) { < libusb_handle_events_timeout(dev->ctx, &tv); < break;

< }

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