{"id":18285,"date":"2015-02-01T02:49:02","date_gmt":"2015-02-01T07:49:02","guid":{"rendered":"https:\/\/reactivemusic.net\/?p=18285"},"modified":"2016-03-30T01:22:31","modified_gmt":"2016-03-30T05:22:31","slug":"mac-os-frequency-control-for-softrock-sdr-devices","status":"publish","type":"post","link":"https:\/\/reactivemusic.net\/?p=18285","title":{"rendered":"Mac OS frequency control for Softrock SDR devices"},"content":{"rendered":"<p class=\"lead\">Softrock-USB-I2C-Controller<\/p>\n<p><cite>By VK6JBL (Andrew Nilsson)<\/cite><\/p>\n<p>Available for download at\u00a0<a href=\"https:\/\/groups.yahoo.com\/neo\/groups\/softrock40\/files\/VK6JBL\/\">https:\/\/groups.yahoo.com\/neo\/groups\/softrock40\/files\/VK6JBL\/<\/a><\/p>\n<p>Note: You need to join the Yahoo softrock40 group to access the link<\/p>\n<p>More information about Softrock using Mac OS here:\u00a0<a href=\"http:\/\/blog.marxy.org\/2012\/02\/softrock-ensemble-rxtx-with-dsp-radio.html\">http:\/\/blog.marxy.org\/2012\/02\/softrock-ensemble-rxtx-with-dsp-radio.html<\/a><\/p>\n<p><cite>By Peter B Marks<\/cite><\/p>\n<p>Note: On Mavericks you may need to unload the kext for the USB device before plugging in the Softrock:<\/p>\n<div class=\"panel\">\n<p>sudo kextunload -bundle com.apple.driver.AppleUSBFTDI<\/p>\n<\/div>\n<p><a href=\"https:\/\/reactivemusic.net\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-01-at-1.56.18-AM.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-18286\" src=\"https:\/\/reactivemusic.net\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-01-at-1.56.18-AM-300x275.png\" alt=\"Screen Shot 2015-02-01 at 1.56.18 AM\" width=\"300\" height=\"275\" srcset=\"https:\/\/reactivemusic.net\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-01-at-1.56.18-AM-300x275.png 300w, https:\/\/reactivemusic.net\/wp-content\/uploads\/2015\/02\/Screen-Shot-2015-02-01-at-1.56.18-AM.png 1024w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<h4>\u00a0update 3-2016<\/h4>\n<p>Using the method above gives error messages, similar to:<\/p>\n<div class=\"panel\">\n<p>(kernel) Kext \/System\/Library\/Extensions\/AppleUSBFTDI.kext\/Contents\/MacOS\/AppleUSBFTDI not found for unload request.<br \/>\nFailed to unload \/System\/Library\/Extensions\/AppleUSBFTDI.kext\/Contents\/MacOS\/AppleUSBFTDI &#8211; (libkern\/kext) not found.<\/p>\n<\/div>\n<p>Various suggestions:<\/p>\n<p>Reboot the computer. Run the command again. Ignore the error message. And then try plugging in the softrock again.<\/p>\n<p>Tried some variations of the command&#8230;<\/p>\n<div class=\"panel\">\n<p>sudo kextunload -b \/System\/Library\/Extensions\/AppleUSBFTDI.kext\/Contents\/MacOS\/AppleUSBFTDI<\/p>\n<\/div>\n<p>But the following one seemed to do the trick (at least for now) even though it still gives an error:<\/p>\n<div class=\"panel\">\n<p>sudo kextunload -bundle-id com.FTDI.driver.FTDIUSBSerialDriver<\/p>\n<\/div>\n<p>For a more practical solution, check the FTDI manual, if it makes any sense to you.<\/p>\n<p><a href=\"http:\/\/www.ftdichip.com\/Support\/Documents\/AppNotes\/AN_134_FTDI_Drivers_Installation_Guide_for_MAC_OSX.pdf\">http:\/\/www.ftdichip.com\/Support\/Documents\/AppNotes\/AN_134_FTDI_Drivers_Installation_Guide_for_MAC_OSX.pdf<\/a><\/p>\n<p>&nbsp;<\/p>\n<h5>usbsoftrock<\/h5>\n<p>A linux command line utility to control softrock, also \u00a0by Andrew Nilsson<\/p>\n<p>Local source is in tkzic\/softrock\/usbsoftrock<\/p>\n<p>Online repo:\u00a0<a href=\"https:\/\/code.google.com\/p\/usbsoftrock\/\">https:\/\/code.google.com\/p\/usbsoftrock\/<\/a>\u00a0(last updated 2\/2011)<\/p>\n<p>It appears that this may have the code needed to build a Max external.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Softrock-USB-I2C-Controller By VK6JBL (Andrew Nilsson) Available for download at\u00a0https:\/\/groups.yahoo.com\/neo\/groups\/softrock40\/files\/VK6JBL\/ Note: You need to join the Yahoo softrock40 group to access the link More information about Softrock using Mac OS here:\u00a0http:\/\/blog.marxy.org\/2012\/02\/softrock-ensemble-rxtx-with-dsp-radio.html By Peter B Marks Note: On Mavericks you may need to unload the kext for the USB device before plugging in the Softrock: sudo kextunload &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/reactivemusic.net\/?p=18285\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Mac OS frequency control for Softrock SDR devices&#8221;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","footnotes":""},"categories":[21],"tags":[57,243],"class_list":["post-18285","post","type-post","status-publish","format-standard","hentry","category-dsp","tag-radio","tag-software-defined-radio"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - 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