<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">As the error says, your user doesn't have permission to read that device. The easiest way to get permission is to add a custom UDEV filter so UDEV will create the device with the right permissions.<div><br></div><div>See this: <a href="http://puredata.info/docs/faq/how-can-i-set-permissions-so-hid-can-read-devices-in-gnu-linux">http://puredata.info/docs/faq/how-can-i-set-permissions-so-hid-can-read-devices-in-gnu-linux</a></div><div><div><br></div><div>Off the top of my head, I would try the following UDEV line:</div><div><br></div><div>DEV=="ttyACM*', MOD="666"</div><div><br></div><div>That should basically mount all ttyACM devices with read permission for everyone. </div><div><br><div><div>On Oct 8, 2014, at 7:09 PM, <a href="mailto:pd-list-request@lists.iem.at">pd-list-request@lists.iem.at</a> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div 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; margin: 0px;"><span style="font-family: Helvetica; color: rgb(127, 127, 127);"><b>From:<span class="Apple-converted-space"> </span></b></span><span style="font-family: Helvetica;">Alexandros Drymonitis <<a href="mailto:adrcki@gmail.com">adrcki@gmail.com</a>><br></span></div><div 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; margin: 0px;"><span style="font-family: Helvetica; color: rgb(127, 127, 127);"><b>Subject:<span class="Apple-converted-space"> </span></b></span><span style="font-family: Helvetica;"><b>[PD] [comport] ** ERROR ** could not open device /dev/ttyACM0: failure(13): Permission denied</b><br></span></div><div 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; margin: 0px;"><span style="font-family: Helvetica; color: rgb(127, 127, 127);"><b>Date:<span class="Apple-converted-space"> </span></b></span><span style="font-family: Helvetica;">October 8, 2014 at 11:10:42 AM EDT<br></span></div><div 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; margin: 0px;"><span style="font-family: Helvetica; color: rgb(127, 127, 127);"><b>To:<span class="Apple-converted-space"> </span></b></span><span style="font-family: Helvetica;">"<a href="mailto:pd-list@lists.iem.at">pd-list@lists.iem.at</a>" <<a href="mailto:pd-list@lists.iem.at">pd-list@lists.iem.at</a>><br></span></div><br 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;"><br 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 dir="ltr" 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><div>I have an Odroid which I use either with an SD card or an eMMC module, both with the same OS (Debian Jessie for Odroid). In the SD card I've got Pd-0.45-5 and in the eMMC module I've got Pd-0.46-0 installed.<br></div>With the SD card I can open the port /dev/ttyACM0 (I've got a Teensy 3.1 plugged in via USB) but with the eMMC module I get this error:<br>"[comport] ** ERROR ** could not open device /dev/ttyACM0:<br> failure(13): Permission denied"<br><br>Any idea why is that? And how can it be solved?<br></div>I've checked the /dev/ directory and the port exists in both the SD and the eMMC.</div></blockquote></div><br><div>
<span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px;"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>--------</div><div>Dan Wilcox</div><div>@danomatika</div><div><a href="http://danomatika.com">danomatika.com</a></div><div><a href="http://robotcowboy.com">robotcowboy.com</a></div><div><br></div></div></span><br class="Apple-interchange-newline"></div></span><br class="Apple-interchange-newline"><br class="Apple-interchange-newline">
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