<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><ol class="linenums gts-lines" style="padding: 0px; margin: 0px 0px 0px 40px; list-style-position: initial; list-style-image: initial; color: rgb(51, 51, 51); font-family: Menlo, Monaco, Consolas, 'Courier New', monospace; line-height: 18px; white-space: pre-wrap; background-color: rgb(254, 254, 254);"><li class="L69" style="color: rgb(190, 190, 197); padding-left: 12px; text-shadow: rgb(255, 255, 255) 0px 1px 0px;"><span class="line" style="color: rgb(72, 72, 76); display: block; min-height: 18px;"><ol class="linenums gts-lines" style="padding: 0px; margin: 0px 0px 0px 40px; list-style-position: initial; list-style-image: initial; color: rgb(51, 51, 51);"><li class="L59" style="color: rgb(190, 190, 197); padding-left: 12px; text-shadow: rgb(255, 255, 255) 0px 1px 0px;"><span class="line" style="color: rgb(72, 72, 76); display: block; min-height: 18px;"><span class="k" style="color: rgb(30, 52, 123); font-weight: bold;">extern</span> <span class="s" style="color: rgb(221, 17, 68);">"C"</span></span></li><li class="L60" style="color: rgb(190, 190, 197); padding-left: 12px; text-shadow: rgb(255, 255, 255) 0px 1px 0px;"><span class="line" style="color: rgb(72, 72, 76); display: block; min-height: 18px;"><span class="p">{</span></span></li><li class="L61" style="color: rgb(190, 190, 197); padding-left: 12px; text-shadow: rgb(255, 255, 255) 0px 1px 0px;"><span class="line" style="color: rgb(72, 72, 76); display: block; min-height: 18px;"><span class="cp" style="color: rgb(188, 122, 0);">#include <linux/i2c.h></span></span></li><li class="L62" style="color: rgb(190, 190, 197); padding-left: 12px; text-shadow: rgb(255, 255, 255) 0px 1px 0px;"><span class="line" style="color: rgb(72, 72, 76); display: block; min-height: 18px;"><span class="cp" style="color: rgb(188, 122, 0);">#include <linux/i2c-dev.h></span></span></li><li class="L63" style="color: rgb(190, 190, 197); padding-left: 12px; text-shadow: rgb(255, 255, 255) 0px 1px 0px;"><span class="line" style="color: rgb(72, 72, 76); display: block; min-height: 18px;"><span class="cp" style="color: rgb(188, 122, 0);">#include <i2c/smbus.h></span></span></li><li class="L64" style="color: rgb(190, 190, 197); padding-left: 12px; text-shadow: rgb(255, 255, 255) 0px 1px 0px;"><span class="line" style="color: rgb(72, 72, 76); display: block; min-height: 18px;"><span class="cp" style="color: rgb(188, 122, 0);">#include <fcntl.h></span></span></li><li class="L65" style="color: rgb(190, 190, 197); padding-left: 12px; text-shadow: rgb(255, 255, 255) 0px 1px 0px;"><span class="line" style="color: rgb(72, 72, 76); display: block; min-height: 18px;"><span class="cp" style="color: rgb(188, 122, 0);">#include <stdlib.h></span></span></li><li class="L66" style="color: rgb(190, 190, 197); padding-left: 12px; text-shadow: rgb(255, 255, 255) 0px 1px 0px;"><span class="line" style="color: rgb(72, 72, 76); display: block; min-height: 18px;"><span class="cp" style="color: rgb(188, 122, 0);">#include <unistd.h></span></span></li><li class="L67" style="color: rgb(190, 190, 197); padding-left: 12px; text-shadow: rgb(255, 255, 255) 0px 1px 0px;"><span class="line" style="color: rgb(72, 72, 76); display: block; min-height: 18px;"><span class="cp" style="color: rgb(188, 122, 0);">#include <sys/ioctl.h></span></span></li><li class="L68" style="color: rgb(190, 190, 197); padding-left: 12px; text-shadow: rgb(255, 255, 255) 0px 1px 0px;"><span class="line" style="color: rgb(72, 72, 76); display: block; min-height: 18px;"><span class="p">}</span></span></li></ol><div><br></div></span><span class="line" style="color: rgb(72, 72, 76); display: block; min-height: 18px;"><br></span><span class="line" style="color: rgb(72, 72, 76); display: block; min-height: 18px;"> <span class="n">file_</span> <span class="o" style="color: rgb(102, 102, 102);">=</span> <span class="n">open</span><span class="p">(</span><span class="s" style="color: rgb(221, 17, 68);">"/dev/i2c-7"</span><span class="p">,</span> <span class="n">O_RDWR</span><span class="p">);</span></span></li><li class="L70" style="color: rgb(190, 190, 197); padding-left: 12px; text-shadow: rgb(255, 255, 255) 0px 1px 0px;"><span class="line" style="color: rgb(72, 72, 76); display: block; min-height: 18px;"> <span class="k" style="color: rgb(30, 52, 123); font-weight: bold;">if</span> <span class="p">(</span><span class="n">file_</span> <span class="o" style="color: rgb(102, 102, 102);"><</span> <span class="mi">0</span><span class="p">)</span></span></li><li class="L71" style="color: rgb(190, 190, 197); padding-left: 12px; text-shadow: rgb(255, 255, 255) 0px 1px 0px;"><span class="line" style="color: rgb(72, 72, 76); display: block; min-height: 18px;"> <span class="n">exit</span><span class="p">(</span><span class="n">EXIT_FAILURE</span><span class="p">);</span></span></li><li class="L72" style="color: rgb(190, 190, 197); padding-left: 12px; text-shadow: rgb(255, 255, 255) 0px 1px 0px;"><span class="line" style="color: rgb(72, 72, 76); display: block; min-height: 18px;"> </span></li><li class="L73" style="color: rgb(190, 190, 197); padding-left: 12px; text-shadow: rgb(255, 255, 255) 0px 1px 0px;"><span class="line" style="color: rgb(72, 72, 76); display: block; min-height: 18px;"> <span class="k" style="color: rgb(30, 52, 123); font-weight: bold;">if</span> <span class="p">(</span><span class="n">ioctl</span><span class="p">(</span><span class="n">file_</span><span class="p">,</span> <span class="p">(</span><span class="kt" style="color: rgb(176, 0, 64);">unsigned</span> <span class="kt" style="color: rgb(176, 0, 64);">long</span> <span class="kt" style="color: rgb(176, 0, 64);">int</span><span class="p">)</span><span class="n">I2C_PEC</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span> <span class="o" style="color: rgb(102, 102, 102);"><</span> <span class="mi">0</span><span class="p">)</span></span></li><li class="L74 focus" style="color: rgb(72, 72, 78); padding-left: 12px; text-shadow: rgb(255, 255, 255) 0px 1px 0px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(225, 225, 232);"><span class="line" style="color: rgb(72, 72, 76); display: block; min-height: 18px; background-color: rgb(255, 255, 204); margin-left: -60px; padding-left: 60px; margin-right: -8px; padding-right: 8px; background-position: initial initial; background-repeat: initial initial;"> <span class="n">exit</span><span class="p">(</span><span class="n">EXIT_FAILURE</span><span class="p">);</span></span></li></ol><div><br></div><div><ol class="linenums gts-lines" style="padding: 0px; margin: 0px 0px 0px 40px; list-style-position: initial; list-style-image: initial; color: rgb(51, 51, 51); font-family: Menlo, Monaco, Consolas, 'Courier New', monospace; line-height: 18px; white-space: pre-wrap; background-color: rgb(254, 254, 254);"><li class="L116" style="color: rgb(190, 190, 197); padding-left: 12px; text-shadow: rgb(255, 255, 255) 0px 1px 0px;"><span class="line" style="color: rgb(72, 72, 76); display: block; min-height: 18px;"><span class="n">writeWord</span><span class="p">(</span><span class="kt" style="color: rgb(176, 0, 64);">uint8_t</span> <span class="n">address</span><span class="p">,</span> <span class="kt" style="color: rgb(176, 0, 64);">uint8_t</span> <span class="n">command</span><span class="p">,</span> <span class="kt" style="color: rgb(176, 0, 64);">uint16_t</span> <span class="n">data</span><span class="p">)</span></span></li><li class="L117" style="color: rgb(190, 190, 197); padding-left: 12px; text-shadow: rgb(255, 255, 255) 0px 1px 0px;"><span class="line" style="color: rgb(72, 72, 76); display: block; min-height: 18px;"><span class="p">{</span></span></li><li class="L118" style="color: rgb(190, 190, 197); padding-left: 12px; text-shadow: rgb(255, 255, 255) 0px 1px 0px;"><span class="line" style="color: rgb(72, 72, 76); display: block; min-height: 18px;"> <span class="k" style="color: rgb(30, 52, 123); font-weight: bold;">if</span> <span class="p">(</span><span class="n">ioctl</span><span class="p">(</span><span class="n">file_</span><span class="p">,</span> <span class="p">(</span><span class="kt" style="color: rgb(176, 0, 64);">unsigned</span> <span class="kt" style="color: rgb(176, 0, 64);">long</span> <span class="kt" style="color: rgb(176, 0, 64);">int</span><span class="p">)</span><span class="n">I2C_SLAVE</span><span class="p">,</span> <span class="n">address</span><span class="p">)</span> <span class="o" style="color: rgb(102, 102, 102);"><</span> <span class="mi">0</span><span class="p">)</span></span></li><li class="L119" style="color: rgb(190, 190, 197); padding-left: 12px; text-shadow: rgb(255, 255, 255) 0px 1px 0px;"><span class="line" style="color: rgb(72, 72, 76); display: block; min-height: 18px;"> <span class="n">exit</span><span class="p">(</span><span class="n">EXIT_FAILURE</span><span class="p">);</span></span></li><li class="L120" style="color: rgb(190, 190, 197); padding-left: 12px; text-shadow: rgb(255, 255, 255) 0px 1px 0px;"><span class="line" style="color: rgb(72, 72, 76); display: block; min-height: 18px;"> </span></li><li class="L121" style="color: rgb(190, 190, 197); padding-left: 12px; text-shadow: rgb(255, 255, 255) 0px 1px 0px;"><span class="line" style="color: rgb(72, 72, 76); display: block; min-height: 18px;"> <span class="k" style="color: rgb(30, 52, 123); font-weight: bold;">if</span> <span class="p">(</span><span class="n">i2c_smbus_write_word_data</span><span class="p">(</span><span class="n">file_</span><span class="p">,</span> <span class="n">command</span><span class="p">,</span> <span class="n">data</span><span class="p">)</span> <span class="o" style="color: rgb(102, 102, 102);">==</span> <span class="o" style="color: rgb(102, 102, 102);">-</span><span class="mi">1</span><span class="p">)</span></span></li><li class="L122" style="color: rgb(190, 190, 197); padding-left: 12px; text-shadow: rgb(255, 255, 255) 0px 1px 0px;"><span class="line" style="color: rgb(72, 72, 76); display: block; min-height: 18px;"> <span class="n">printf</span><span class="p">(</span><span class="s" style="color: rgb(221, 17, 68);">"Write Word: fail.</span><span class="se" style="color: rgb(221, 17, 68);">\n</span><span class="s" style="color: rgb(221, 17, 68);">"</span><span class="p">);</span></span></li><li class="L123 focus" style="color: rgb(72, 72, 78); padding-left: 12px; text-shadow: rgb(255, 255, 255) 0px 1px 0px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(225, 225, 232);"><span class="line" style="color: rgb(72, 72, 76); display: block; min-height: 18px; background-color: rgb(255, 255, 204); margin-left: -60px; padding-left: 60px; margin-right: -8px; padding-right: 8px; background-position: initial initial; background-repeat: initial initial;"><span class="p">}</span></span></li></ol><div><br></div></div><div><br></div><div><div>On Mar 4, 2015, at 11:34 PM, Krause Martin <<a href="mailto:Martin.Krause@tq-group.com">Martin.Krause@tq-group.com</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div lang="DE" link="blue" vlink="purple" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><div class="WordSection1" style="page: WordSection1;"><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;">Hi,<o:p></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><o:p> </o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">how can I access the SMBus of the MinnowMax under Linux?<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US"> </span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">I’ve successfully build an sdcard with a current Yocto-Linux (top of tree, with 3.19.0er kernel).<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US"> </span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">There are two modules (automatically) loaded with i2c-support:<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US"> </span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">- i2c_i801<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">- i2c_designware_core<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt 36pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US"> </span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">root@intel-corei7-64:~# lsmod<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">Module Size Used by<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">i2c_i801 10830 0<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">uio 9941 0<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">iwlwifi 109670 0<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">cfg80211 525235 1 iwlwifi<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;">snd_hda_codec_hdmi 39400 1<o:p></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;">snd_hda_intel 22091 0<o:p></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">efivars 7981 0<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">snd_hda_controller 22700 1 snd_hda_intel<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">snd_hda_codec 109749 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_controller<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">snd_pcm 93059 4 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controller<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">snd_timer 20730 1 snd_pcm<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">dw_dmac 2803 0<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">dw_dmac_core 15959 1 dw_dmac<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">spi_pxa2xx_platform 16651 0<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">i2c_designware_platform 3843 0<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">i2c_designware_core 7249 1 i2c_designware_platform<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">root@intel-corei7-64:~#<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US"> </span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">I think the i2c_i801 is the driver for the smbus, the i2c_designware_xxx is for the i2c busses?<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">Is this correct?<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US"> </span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">I see nine i2c device-nodes (= buses):<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US"> </span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">root@intel-corei7-64:~# ls -la /dev/i2c*<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">crw------- 1 root root 89, 0 Mar 3 10:00 /dev/i2c-0<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">crw------- 1 root root 89, 1 Mar 3 10:00 /dev/i2c-1<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">crw------- 1 root root 89, 2 Mar 3 10:00 /dev/i2c-2<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">crw------- 1 root root 89, 3 Mar 3 10:00 /dev/i2c-3<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">crw------- 1 root root 89, 4 Mar 3 10:00 /dev/i2c-4<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">crw------- 1 root root 89, 5 Mar 3 10:00 /dev/i2c-5<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">crw------- 1 root root 89, 6 Mar 3 10:00 /dev/i2c-6<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">crw------- 1 root root 89, 7 Mar 3 10:00 /dev/i2c-7<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">crw------- 1 root root 89, 8 Mar 3 10:00 /dev/i2c-8<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">root@intel-corei7-64:~#<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US"> </span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">Is one of this the smbus?<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US"> </span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">The buses 0 to 6 could be accessed with i2cdetect (i2c-0 for example):<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US"> </span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">root@intel-corei7-64:~# i2cdetect 0<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">WARNING! This program can confuse your I2C bus, cause data loss and worse!<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">I will probe file /dev/i2c-0.<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">I will probe address range 0x03-0x77.<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">Continue? [Y/n]<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US"> 0 1 2 3 4 5 6 7 8 9 a b c d e f<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">00: -- -- -- -- -- -- -- -- -- -- -- -- --<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">70: -- -- -- -- -- -- -- --<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">root@intel-corei7-64:~#<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US"> </span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">When I try to access the busses 7 or 8 with i2cdetect, I get an error:<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US"> </span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">root@intel-corei7-64:~# i2cdetect 7<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">Error: Can't use SMBus Quick Write command on this bus<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">root@intel-corei7-64:~#<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US"> </span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">I would expect to see at least two devices on the smbus, one on address<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">0x50 (24C02 EEPROM) and on address 0x6c (NCT3012S). But on the<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">i2c buses 0-6 - which could be accessed with i2cdetect - there is nothing<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">detected on this addresses.<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US"> </span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">Best regards,<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US">Martin<o:p></o:p></span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US"> </span></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Arial, sans-serif;"><span lang="EN-US"> </span></div></div>_______________________________________________<br>elinux-MinnowBoard mailing list<br><a href="mailto:elinux-MinnowBoard@lists.elinux.org" style="color: purple; text-decoration: underline;">elinux-MinnowBoard@lists.elinux.org</a><br><a href="http://lists.elinux.org/mailman/listinfo/elinux-minnowboard" style="color: purple; text-decoration: underline;">http://lists.elinux.org/mailman/listinfo/elinux-minnowboard</a></div></blockquote></div><br></body></html>