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want to modify the USB-HID interval of data transfer

Dear sir,

using USB HID example, we had developed an example to transfer 4 channel ADC data to HID_Client VC++ program.

here the data transfer rate through Config descriptor -- bInterval is 32 ms.

instead of continous, we want to read the data as on our request from Hid Client program through Button press.

for that what are the modification we need to do on Hid Client and STM32 program

advance thanks for the help.

with regards

S.Venugopal