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USB interrupt storm

Question asked by ababo on Jan 6, 2014
Latest reply on Jan 7, 2014 by ababo

I am developing an USB HID device with a STM32F4xx microcontroller, using the ST USB stack version.
When there are some data to send to host (PC), the device just puts the data into the buffer endpoint. During the time between this step and until the host polls the IN endpoint, the USB ISR is permanently interrupting the MCU, and therefore is MCU stays stuck during this time!!
Is this a bug in USB stack or is there any solution for this problem???

Thanks :)