Date: Fri, 28 Jul 2017 17:55:53 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 221071] NCT6779D - implement support for sensor readings Message-ID: <bug-221071-8-7fD0UlkTI9@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-221071-8@https.bugs.freebsd.org/bugzilla/> References: <bug-221071-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=221071 --- Comment #2 from Nils Beyer <nbe@renzel.net> --- I don't get it; for instance, CPU temperature - bank 4, register 91h reads 36h = 54 so, the logic in NetBSD code is as following: ----------------------------------------------------------------------- data = (*sc->lm_readreg)(sc, sc->lm_sensors[n].reg) << 1; data += (*sc->lm_readreg)(sc, sc->lm_sensors[n].reg + 1) >> 7; if (data > 0xfffffff || (data > 0x0fa && data < 0x1a6)) { sc->sensors[n].state = ENVSYS_SINVALID; } else { if (data & 0x100) data -= 0x200; sc->sensors[n].state = ENVSYS_SVALID; sc->sensors[n].value_cur = data * 500000 + 273150000; } ----------------------------------------------------------------------- 1) shift original value one left -> 6Ch = 108 2) shift value of next register seven right (0) and add that to original value -> 6Ch stays 2) bit-and that with 100h, if true then subtract 200h -> it's false, so 6Ch stays 3) multiply that with 500000 -> 0337f980h = 54000000 4) add 273150000 -> 137FE9B0h = 327150000 So, I have exceeded the safe temperature of my CPU and of the solar system's sun... -- You are receiving this mail because: You are the assignee for the bug.
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