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Searched refs:pc_derivative (Results 1 – 2 of 2) sorted by relevance

/freebsd/sys/kern/
H A Dsubr_pidctrl.c60 &pc->pc_derivative, 0, "Error derivative (D)"); in pidctrl_init_sysctl()
100 pc->pc_derivative = error - pc->pc_olderror; in pidctrl_classic()
104 (pc->pc_derivative / Kdd); in pidctrl_classic()
143 pc->pc_derivative = pc->pc_error - pc->pc_olderror; in pidctrl_daemon()
147 (pc->pc_derivative / Kdd); in pidctrl_daemon()
/freebsd/sys/sys/
H A Dpidctrl.h64 int pc_derivative; /* Change from last error. */ member