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I think I figured it out, might be mistaken, though.. One needs to add the Then the host needs to issue IN token(s) on the interrupt EP effectively polling for device data. Host either sees a timeout (device had no data to reported) or 2 bytes of data (0x81 <status_byte>). Unfortunately, there seems to be a bug (See #2735) in the |
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USBTMC change in #2494 adds notification support. I'm trying to figure out how to use this feature on the RP2040 port.
How is
bool tud_usbtmc_transmit_notification_data(const void * data, size_t len)
supposed to be used?What should be done in
bool tud_usbtmc_notification_complete_cb(void)
?Is host supposed to "poll" for the SRQ using pyvisa
instrument.read_stb()
?Can anyone shed some light onto this subject?
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