Date: Thu, 1 May 2014 13:12:45 -0400 From: Winston Smith <smith.winston.101@gmail.com> To: FreeBSD ARM <freebsd-arm@freebsd.org> Subject: BBB/I2C: Using ioctl(I2CRDWR) warns: interrupt storm detected on "intr70:" Message-ID: <CADH-AwGbnqzGqbzpV9YMgdOciLpoy3fqxF1RtCmMPZtgc%2BAcXg@mail.gmail.com>
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Continuing on with working with the I2C interface on the BBB I wrote a utility to read the BBB's 28 byte system EEPROM on iic0, address 0x50 which contains the model and serial numbers. See pastebin here: http://pastebin.com/p7XwKUGZ However, when I run the utility: root@beaglebone:~ # ./bbb_eeprom Read from slave 50 on /dev/iic0, signature=AA:55:33:EE Model: A335BNLT0A6A Serial: 0214BBBK4321 I see the following warning on the console: interrupt storm detected on "intr70:"; throttling interrupt source Does this mean anything, or is it just a spurious warning. BTW: This is with FreeBSD 11-CURRENT r265163. -W
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