{"id":2151,"date":"2024-01-04T13:37:06","date_gmt":"2024-01-04T11:37:06","guid":{"rendered":"https:\/\/energyintelligence.se\/shop\/?page_id=2151"},"modified":"2024-01-04T13:37:06","modified_gmt":"2024-01-04T11:37:06","slug":"usb-adaptern-saknar-dev-ttyusb0","status":"publish","type":"page","link":"https:\/\/energyintelligence.se\/shop\/usb-adaptern-saknar-dev-ttyusb0\/","title":{"rendered":"USB-adaptern saknar \/dev\/ttyUSB0"},"content":{"rendered":"\n<p>Om du f\u00e5r ett meddelande liknande detta nedan n\u00e4r du kopplat in USB-adaptern och d\u00e4refter k\u00f6r &#8217;sudo dmesg&#8217; finns f\u00f6ljande l\u00f6sning<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;  192.926852] usb 1-2: new full-speed USB device number 4 using xhci_hcd\n&#91;  193.079643] usb 1-2: New USB device found, idVendor=1a86, idProduct=7523, bcdDevice= 2.64\n&#91;  193.079651] usb 1-2: New USB device strings: Mfr=0, Product=2, SerialNumber=0\n&#91;  193.079655] usb 1-2: Product: USB Serial\n&#91;  193.105161] usbcore: registered new interface driver usbserial_generic\n&#91;  193.105176] usbserial: USB Serial support registered for generic\n&#91;  193.107166] usbcore: registered new interface driver ch341\n&#91;  193.107195] usbserial: USB Serial support registered for ch341-uart\n&#91;  193.107216] ch341 1-2:1.0: ch341-uart converter detected\n&#91;  193.107723] usb 1-2: ch341-uart converter now attached to ttyUSB0\n&#91;  193.130366] input: PC Speaker as \/devices\/platform\/pcspkr\/input\/input25\n&#91;  193.639897] input: BRLTTY 6.4 Linux Screen Driver Keyboard as \/devices\/virtual\/input\/input26\n&#91;  193.641556] usb 1-2: usbfs: <strong>interface 0 claimed by ch341 while 'brltty' sets config #1<\/strong>\n&#91;  193.642168] ch341-uart ttyUSB0: ch341-uart converter now disconnected from ttyUSB0\n&#91;  193.642194] ch341 1-2:1.0: device disconnected\n<\/code><\/pre>\n\n\n\n<p>Problemet som uppst\u00e5r \u00e4r att p\u00e5 nyare Ubuntu (t ex 22) krockar en Braille-tj\u00e4nst med USB-UART-chippet vi anv\u00e4nder f\u00f6r USB-adaptern.<\/p>\n\n\n\n<p>Den enklaste l\u00f6sningen p\u00e5 detta (f\u00f6rutsatt att man inte anv\u00e4nder denna Braille tj\u00e4nst f\u00f6r synskadade) \u00e4r att inaktivera tj\u00e4nsten och d\u00e4refter f\u00f6rs\u00f6ka p\u00e5 nytt. Man kan inaktivera tj\u00e4nsten med nedan kommandon i terminalen:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo systemctl stop brltty-udev.service \nsudo systemctl mask brltty-udev.service \nsudo systemctl stop brltty.service\nsudo systemctl disable brltty.service<\/code><\/pre>\n\n\n\n<p>Det du vill se n\u00e4r du k\u00f6r &#8217;sudo dmesg&#8217; \u00e4r n\u00e5got som liknar f\u00f6ljande<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;  452.093981] usb 1-2: New USB device found, idVendor=1a86, idProduct=7523, bcdDevice= 2.64\n&#91;  452.093995] usb 1-2: New USB device strings: Mfr=0, Product=2, SerialNumber=0\n&#91;  452.094001] usb 1-2: Product: USB Serial\n&#91;  452.095821] ch341 1-2:1.0: ch341-uart converter detected\n&#91;  452.096513] usb 1-2: <strong>ch341-uart converter now attached to ttyUSB0<\/strong><\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Om du f\u00e5r ett meddelande liknande detta nedan n\u00e4r du kopplat in USB-adaptern och d\u00e4refter k\u00f6r &#8217;sudo dmesg&#8217; finns f\u00f6ljande l\u00f6sning Problemet som uppst\u00e5r \u00e4r att p\u00e5 nyare Ubuntu (t ex 22) krockar en Braille-tj\u00e4nst med USB-UART-chippet vi anv\u00e4nder f\u00f6r USB-adaptern. Den enklaste l\u00f6sningen p\u00e5 detta (f\u00f6rutsatt att man inte anv\u00e4nder denna Braille tj\u00e4nst f\u00f6r [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>USB-adaptern saknar \/dev\/ttyUSB0 - Energy Intelligence<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/energyintelligence.se\/shop\/usb-adaptern-saknar-dev-ttyusb0\/\" \/>\n<meta property=\"og:locale\" content=\"sv_SE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"USB-adaptern saknar \/dev\/ttyUSB0 - Energy Intelligence\" \/>\n<meta property=\"og:description\" content=\"Om du f\u00e5r ett meddelande liknande detta nedan n\u00e4r du kopplat in USB-adaptern och d\u00e4refter k\u00f6r &#8217;sudo dmesg&#8217; finns f\u00f6ljande l\u00f6sning Problemet som uppst\u00e5r \u00e4r att p\u00e5 nyare Ubuntu (t ex 22) krockar en Braille-tj\u00e4nst med USB-UART-chippet vi anv\u00e4nder f\u00f6r USB-adaptern. 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