Changeset 3216
- Timestamp:
- 12/17/05 12:25:33 (3 years ago)
- Files:
-
- lm-sensors/trunk/doc/FAQ (modified) (3 diffs)
- lm-sensors/trunk/doc/lm_sensors-FAQ.html (modified) (7 diffs)
- lm-sensors/trunk/doc/lm_sensors-FAQ.texi (modified) (3 diffs)
- lm-sensors/trunk/doc/version.texi (modified) (1 diff)
Legend:
- Unmodified
- Added
- Removed
- Modified
- Copied
- Moved
lm-sensors/trunk/doc/FAQ
r3117 r3216 9 9 5 How to Ask for Help 10 10 6 How to Contribute 11 7 Version 1 Specific Questions12 11 Appendix A Revision History of This Document 13 12 … … 129 128 6.7 How to REALLY help 130 129 6.8 How to get release announcements 131 7 Version 1 Specific Questions132 7.1 My manufacturer swears that my mainboard has an SMBus, but your code reports that it can't find it. What's wrong?133 7.2 The modules won't load, saying 'SMBus not detected'.134 7.3 I try to read `/proc/sensors', and I get a "No sensor data yet (try again in a few moments)" message. Why?135 7.4 On my Dell, a LM80 is detected, but all readings are 0!136 130 Appendix A Revision History of This Document 137 131 … … 1540 1534 releases' and then freshmeat will email you announcement. 1541 1535 1542 7 Version 1 Specific Questions1543 ******************************1544 1545 Note: Version 1 is very very old and is not recommended.1546 1547 7.1 My manufacturer swears that my mainboard has an SMBus, but your code reports that it can't find it. What's wrong?1548 ======================================================================================================================1549 1550 Currently, our code only assumes that an SMBus exists if it originates1551 from the Intel PIIX4 (82371AB). If your computer doesn't have one, or1552 if your SMBus originates from a different SMBus 'host', then you are1553 out of luck. :'( Our experience is, though, that most machines have a1554 PIIX4, and that it is where the SMBus is hosted.1555 1556 Regarding the VIA chip set(s):1557 1558 Right now, the SMBus code depends on the Intel PIIX4 chip to handle1559 SMBus transactions. The VIA chip set is NOT supported at this time1560 because it forces much of the SMBus protocol to be implemented by1561 software.1562 1563 To implement the SMBus correctly with the VIA chip, it needs to be1564 written at a low level to be quick. A more attractive alternative is to1565 use the Bios SMBus interface (not always available nor standard).1566 1567 Version 2 supports the VIA chipset, and will support other chipsets.1568 Version 1 never will.1569 1570 7.2 The modules won't load, saying 'SMBus not detected'.1571 ========================================================1572 1573 This should no longer be an issue in 1.4.10 and later; it will continue1574 loading, but it won't support SMBus-connected devices, of course.1575 1576 7.3 I try to read `/proc/sensors', and I get a "No sensor data yet (try again in a few moments)" message. Why?1577 ==============================================================================================================1578 1579 It takes about 1.5 seconds for the LM78 to update all its sensor1580 values. If we would try to read it before it finished that, you would1581 get old garbage instead. So you have to wait 1.5 seconds after the1582 module is inserted before you can access `/proc/sensors'.1583 1584 Module versions 1.3.7 and later let the process sleep if it tries to1585 access sensor data right after insertion time, and do not display this1586 message anymore.1587 1588 7.4 On my Dell, a LM80 is detected, but all readings are 0!1589 ===========================================================1590 1591 This is a bug we have only observed on Dell computers. There is1592 probably a problem with the way the SMBus is accessed; but it is not yet1593 clear whether the problem is in our code or with the Dells.1594 1595 There are very probably no sensor chips at all on your computer; but1596 until somebody contacts Dell about this and tells us the results, we1597 can not be sure.1598 1599 1536 Appendix A Revision History of This Document 1600 1537 ******************************************** 1601 1538 1539 * Rev 2.18 (JD) Removed version 1 specifics part, 2005-12-17 1540 1602 1541 * Rev 2.17 (JD) Added 5.9 (why we don't support undocumented chips), 1603 1542 removed 6.9 (doesn't apply to the new mailing list), 2005-10-05 lm-sensors/trunk/doc/lm_sensors-FAQ.html
r3117 r3216 1 1 <html lang="en"> 2 2 <head> 3 <title>Sensors FAQ for lm_sensors version 2.1 7</title>3 <title>Sensors FAQ for lm_sensors version 2.18</title> 4 4 <meta http-equiv="Content-Type" content="text/html"> 5 <meta name="description" content="Sensors FAQ for lm_sensors version 2.1 7">5 <meta name="description" content="Sensors FAQ for lm_sensors version 2.18"> 6 6 <meta name="generator" content="makeinfo 4.7"> 7 7 <link title="Top" rel="top" href="#Top"> … … 20 20 </head> 21 21 <body> 22 <h1 class="settitle">Sensors FAQ for lm_sensors version 2.1 7</h1>22 <h1 class="settitle">Sensors FAQ for lm_sensors version 2.18</h1> 23 23 Copyright (C) 1998 - 2005<br> 24 24 Frodo Looijaard,<br> … … 38 38 <li><a href="#toc_Help">5 How to Ask for Help</a></li> 39 39 <li><a href="#toc_Contribute">6 How to Contribute</a></li> 40 <li><a href="#toc_Version-1-Specifics">7 Version 1 Specific Questions</a></li>41 40 <li><a href="#toc_Document-Revisions">Appendix A Revision History of This Document</a></li> 42 41 </ul> … … 195 194 <li><a href="#Section-6_002e8">6.8 How to get release announcements</a> 196 195 </li></ul> 197 <li><a name="toc_Version-1-Specifics" href="#Version-1-Specifics">7 Version 1 Specific Questions</a>198 <ul>199 <li><a href="#Section-7_002e1">7.1 My manufacturer swears that my mainboard has an SMBus, but your code reports that it can't find it. What's wrong?</a>200 <li><a href="#Section-7_002e2">7.2 The modules won't load, saying 'SMBus not detected'.</a>201 <li><a href="#Section-7_002e3">7.3 I try to read <span class="file">/proc/sensors</span>, and I get a "No sensor data yet (try again in a few moments)" message. Why?</a>202 <li><a href="#Section-7_002e4">7.4 On my Dell, a LM80 is detected, but all readings are 0!</a>203 </li></ul>204 196 <li><a name="toc_Document-Revisions" href="#Document-Revisions">Appendix A Revision History of This Document</a> 205 197 </li></ul> … … 226 218 <li><a accesskey="5" href="#Help">Help</a>: How to Ask for Help 227 219 <li><a accesskey="6" href="#Contribute">Contribute</a>: How to Contribute 228 <li><a accesskey="7" href="#Version-1-Specifics">Version 1 Specifics</a>: Version 1 Specific Questions 229 <li><a accesskey="8" href="#Document-Revisions">Document Revisions</a>: Revision History of This Document 220 <li><a accesskey="7" href="#Document-Revisions">Document Revisions</a>: Revision History of This Document 230 221 </ul> 231 222 … … 2035 2026 <div class="node"> 2036 2027 <p><hr> 2037 <a name="Contribute"></a>Next: <a rel="next" accesskey="n" href="# Version-1-Specifics">Version 1 Specifics</a>,2028 <a name="Contribute"></a>Next: <a rel="next" accesskey="n" href="#Document-Revisions">Document Revisions</a>, 2038 2029 Previous: <a rel="previous" accesskey="p" href="#Help">Help</a>, 2039 2030 Up: <a rel="up" accesskey="u" href="#Top">Top</a> … … 2196 2187 <div class="node"> 2197 2188 <p><hr> 2198 <a name="Version-1-Specifics"></a>Next: <a rel="next" accesskey="n" href="#Document-Revisions">Document Revisions</a>, 2199 Previous: <a rel="previous" accesskey="p" href="#Contribute">Contribute</a>, 2189 <a name="Document-Revisions"></a>Previous: <a rel="previous" accesskey="p" href="#Contribute">Contribute</a>, 2200 2190 Up: <a rel="up" accesskey="u" href="#Top">Top</a> 2201 2191 <br> 2202 2192 </div> 2203 2193 2204 <h2 class="chapter">7 Version 1 Specific Questions</h2>2205 2206 <ul class="menu">2207 <li><a accesskey="1" href="#Section-7_002e1">Section 7.1</a>: My mainboard has an SMBus, your code can't find it. Why?2208 <li><a accesskey="2" href="#Section-7_002e2">Section 7.2</a>: The modules won't load, saying 'SMBus not detected'.2209 <li><a accesskey="3" href="#Section-7_002e3">Section 7.3</a>: I get a "No sensor data yet (try again in a few moments)" msg.2210 <li><a accesskey="4" href="#Section-7_002e4">Section 7.4</a>: On my Dell, a LM80 is detected, but all readings are 0!2211 </ul>2212 2213 <p>Note: Version 1 is very very old and is not recommended.2214 2215 <div class="node">2216 <p><hr>2217 <a name="Section-7_002e1"></a>Next: <a rel="next" accesskey="n" href="#Section-7_002e2">Section 7.2</a>,2218 Up: <a rel="up" accesskey="u" href="#Version-1-Specifics">Version 1 Specifics</a>2219 <br>2220 </div>2221 2222 <h3 class="section">7.1 My manufacturer swears that my mainboard has an SMBus, but your code reports that it can't find it. What's wrong?</h3>2223 2224 <p>Currently, our code only assumes that an SMBus exists if it originates2225 from the Intel PIIX4 (82371AB). If your computer doesn't have one, or if your2226 SMBus originates from a different SMBus 'host', then you are out of luck. :'(2227 Our experience is, though, that most machines have a PIIX4, and that it is2228 where the SMBus is hosted.2229 2230 <p>Regarding the VIA chip set(s):2231 2232 <p>Right now, the SMBus code depends on the Intel PIIX4 chip to handle2233 SMBus transactions. The VIA chip set is NOT supported at this time because2234 it forces much of the SMBus protocol to be implemented by software.2235 2236 <p>To implement the SMBus correctly with the VIA chip, it needs to be2237 written at a low level to be quick. A more attractive alternative is to2238 use the Bios SMBus interface (not always available nor standard).2239 2240 <p>Version 2 supports the VIA chipset, and will support other chipsets.2241 Version 1 never will.2242 2243 <div class="node">2244 <p><hr>2245 <a name="Section-7_002e2"></a>Next: <a rel="next" accesskey="n" href="#Section-7_002e3">Section 7.3</a>,2246 Previous: <a rel="previous" accesskey="p" href="#Section-7_002e1">Section 7.1</a>,2247 Up: <a rel="up" accesskey="u" href="#Version-1-Specifics">Version 1 Specifics</a>2248 <br>2249 </div>2250 2251 <h3 class="section">7.2 The modules won't load, saying 'SMBus not detected'.</h3>2252 2253 <p>This should no longer be an issue in 1.4.10 and later; it will2254 continue loading, but it won't support SMBus-connected devices, of course.2255 2256 <div class="node">2257 <p><hr>2258 <a name="Section-7_002e3"></a>Next: <a rel="next" accesskey="n" href="#Section-7_002e4">Section 7.4</a>,2259 Previous: <a rel="previous" accesskey="p" href="#Section-7_002e2">Section 7.2</a>,2260 Up: <a rel="up" accesskey="u" href="#Version-1-Specifics">Version 1 Specifics</a>2261 <br>2262 </div>2263 2264 <h3 class="section">7.3 I try to read <span class="file">/proc/sensors</span>, and I get a "No sensor data yet (try again in a few moments)" message. Why?</h3>2265 2266 <p>It takes about 1.5 seconds for the LM78 to update all its sensor2267 values. If we would try to read it before it finished that, you would get2268 old garbage instead. So you have to wait 1.5 seconds after the module is2269 inserted before you can access <span class="file">/proc/sensors</span>.2270 2271 <p>Module versions 1.3.7 and later let the process sleep if it tries2272 to access sensor data right after insertion time, and do not display this2273 message anymore.2274 2275 <div class="node">2276 <p><hr>2277 <a name="Section-7_002e4"></a>Previous: <a rel="previous" accesskey="p" href="#Section-7_002e3">Section 7.3</a>,2278 Up: <a rel="up" accesskey="u" href="#Version-1-Specifics">Version 1 Specifics</a>2279 <br>2280 </div>2281 2282 <h3 class="section">7.4 On my Dell, a LM80 is detected, but all readings are 0!</h3>2283 2284 <p>This is a bug we have only observed on Dell computers. There is2285 probably a problem with the way the SMBus is accessed; but it is not yet2286 clear whether the problem is in our code or with the Dells.2287 2288 <p>There are very probably no sensor chips at all on your computer;2289 but until somebody contacts Dell about this and tells us the results, we2290 can not be sure.2291 2292 <div class="node">2293 <p><hr>2294 <a name="Document-Revisions"></a>Previous: <a rel="previous" accesskey="p" href="#Version-1-Specifics">Version 1 Specifics</a>,2295 Up: <a rel="up" accesskey="u" href="#Top">Top</a>2296 <br>2297 </div>2298 2299 2194 <h2 class="appendix">Appendix A Revision History of This Document</h2> 2300 2195 2301 2196 <ul> 2197 <li>Rev 2.18 (JD) Removed version 1 specifics part, 2005-12-17 2302 2198 <li>Rev 2.17 (JD) Added 5.9 (why we don't support undocumented chips), 2303 2199 removed 6.9 (doesn't apply to the new mailing list), 2005-10-05 lm-sensors/trunk/doc/lm_sensors-FAQ.texi
r3117 r3216 53 53 * Help:: How to Ask for Help 54 54 * Contribute:: How to Contribute 55 * Version 1 Specifics:: Version 1 Specific Questions56 55 * Document Revisions:: Revision History of This Document 57 56 @end menu … … 1487 1486 1488 1487 1489 @node Contribute, Version 1 Specifics, Help, Top1488 @node Contribute, Document Revisions, Help, Top 1490 1489 @chapter How to Contribute 1491 1490 … … 1595 1594 1596 1595 1597 @node Version 1 Specifics, Document Revisions, Contribute, Top 1598 @chapter Version 1 Specific Questions 1599 1600 @menu 1601 * Section 7.1:: My mainboard has an SMBus, your code can't find it. Why? 1602 * Section 7.2:: The modules won't load, saying 'SMBus not detected'. 1603 * Section 7.3:: I get a "No sensor data yet (try again in a few moments)" msg. 1604 * Section 7.4:: On my Dell, a LM80 is detected, but all readings are 0! 1605 @end menu 1606 1607 1608 Note: Version 1 is very very old and is not recommended. 1609 1610 @node Section 7.1, Section 7.2, , Version 1 Specifics 1611 @section My manufacturer swears that my mainboard has an SMBus, but your code reports that it can't find it. What's wrong? 1612 1613 Currently, our code only assumes that an SMBus exists if it originates 1614 from the Intel PIIX4 (82371AB). If your computer doesn't have one, or if your 1615 SMBus originates from a different SMBus 'host', then you are out of luck. :'( 1616 Our experience is, though, that most machines have a PIIX4, and that it is 1617 where the SMBus is hosted. 1618 1619 Regarding the VIA chip set(s): 1620 1621 Right now, the SMBus code depends on the Intel PIIX4 chip to handle 1622 SMBus transactions. The VIA chip set is NOT supported at this time because 1623 it forces much of the SMBus protocol to be implemented by software. 1624 1625 To implement the SMBus correctly with the VIA chip, it needs to be 1626 written at a low level to be quick. A more attractive alternative is to 1627 use the Bios SMBus interface (not always available nor standard). 1628 1629 1630 Version 2 supports the VIA chipset, and will support other chipsets. 1631 Version 1 never will. 1632 1633 1634 @node Section 7.2, Section 7.3, Section 7.1, Version 1 Specifics 1635 @section The modules won't load, saying 'SMBus not detected'. 1636 1637 This should no longer be an issue in 1.4.10 and later; it will 1638 continue loading, but it won't support SMBus-connected devices, of course. 1639 1640 1641 @node Section 7.3, Section 7.4, Section 7.2, Version 1 Specifics 1642 @section I try to read @file{/proc/sensors}, and I get a "No sensor data yet (try again in a few moments)" message. Why? 1643 1644 It takes about 1.5 seconds for the LM78 to update all its sensor 1645 values. If we would try to read it before it finished that, you would get 1646 old garbage instead. So you have to wait 1.5 seconds after the module is 1647 inserted before you can access @file{/proc/sensors}. 1648 1649 Module versions 1.3.7 and later let the process sleep if it tries 1650 to access sensor data right after insertion time, and do not display this 1651 message anymore. 1652 1653 1654 @node Section 7.4, , Section 7.3, Version 1 Specifics 1655 @section On my Dell, a LM80 is detected, but all readings are 0! 1656 1657 This is a bug we have only observed on Dell computers. There is 1658 probably a problem with the way the SMBus is accessed; but it is not yet 1659 clear whether the problem is in our code or with the Dells. 1660 1661 There are very probably no sensor chips at all on your computer; 1662 but until somebody contacts Dell about this and tells us the results, we 1663 can not be sure. 1664 1665 1666 @node Document Revisions, , Version 1 Specifics, Top 1596 @node Document Revisions, , Contribute, Top 1667 1597 @appendix Revision History of This Document 1668 1598 1669 1599 @itemize 1600 @item Rev 2.18 (JD) Removed version 1 specifics part, 2005-12-17 1670 1601 @item Rev 2.17 (JD) Added 5.9 (why we don't support undocumented chips), 1671 1602 removed 6.9 (doesn't apply to the new mailing list), 2005-10-05 lm-sensors/trunk/doc/version.texi
r3117 r3216 1 @set UPDATED 5 October 20052 @set VERSION 2.1 71 @set UPDATED 17 December 2005 2 @set VERSION 2.18
