With latest daily build (I tested July 29th 2016) Hantek 6022BE is not useable in Windows.
Symptoms: pulseview: - Does not capture any data sigrok-cli: - Reports error "sr: hantek-6xxx: Failed to control transfer: 0xe5: LIBUSB_ERROR_PIPE." - Only captures date when capturing an amount of samples that is a power of 2 With the patch below, both pulseview and sigrok-cli can capture data although the LIBUSB error remains. Any idea what is causing the LIBUSB error? Note1: I'm not the original author of the patch, it's from reply #359 here: http://www.eevblog.com/forum/testgear/sainsmart-dds120-usb-oscilloscope-(buudai-bm102)/350/ Note2: The patch has only been tested by me in Windows 10 64 bit. Suggested patch: diff --git a/src/hardware/hantek-6xxx/api.c b/src/hardware/hantek-6xxx/api.c index 8848c91..e81ee04 100644 --- a/src/hardware/hantek-6xxx/api.c +++ b/src/hardware/hantek-6xxx/api.c @@ -531,7 +531,11 @@ static uint32_t data_amount(const struct sr_dev_inst *sdi) data_left = devc->samplerate * NUM_CHANNELS; } - data_left += MIN_PACKET_SIZE; /* Driver does not handle small buffers. */ + uint32_t i; + /* Round up to nearest power of two */ + for (i = MIN_PACKET_SIZE; i < data_left; i *= 2) + ; + data_left = i; sr_spew("data_amount %u", data_left); ------------------------------------------------------------------------------ _______________________________________________ sigrok-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/sigrok-devel
