tree f2bde7432a383fbdcf7f23cc3aa2b32052503da1
parent d28d3fc4c040eff04e075b409cad4d2751eeddb2
author Kévin Redon <kredon@sysmocom.de> 1530627476 +0200
committer Kévin Redon <kredon@sysmocom.de> 1530627480 +0200

sniffing: decrease USB IRQ prioprity to prevent USART overrun

Change-Id: I870a0aa8e251bbb53249c54bfcaa45de5b5a9486

Handling the USB message queue is done in an ISR and take quite some time.
This can cause a USART/SIM sniffing buffer overrun, resulting in data loss.
By setting the USB IRQ lower than the USART IRQ, the USB ISR can be
interrupted (for short) and no data gets lost.