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NAME
SYNOPSIS
phandle_t
DESCRIPTION
EXAMPLESphandle_t root, i2c; root = OF_finddevice("/"); i2c = OF_finddevice("/soc/axi/i2c@a0e0000"); if (i2c != -1) { ... } SEE ALSOAUTHORSThis manual page was written by Oleksandr Tymoshenko <gonzo@FreeBSD.org>. CAVEATSThe return value should only be checked with equality operators (equal to, not equal to) and not relational comparison (less than, greater than ). There is a discrepancy between IEEE 1275 standard and FreeBSD's internal representation of a phandle: IEEE 1275 requires the return value of this function to be -1 if the path is not found. But phandle_t is an unsigned type, so it cannot be relationally compared with -1 or 0, this comparison is always true or always false.
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