I had got tired of trying all the so-called ‘recommendations’ for fixing USB hub connectivity on the Raspberry Pi – including some from people who did not actually own one..\u00a0\u00a0 And yes, I do have the correct voltage power supply etc. etc…<\/p>\n
So – I was happy to see that there was -at least – a potential hardware fix, involving the addition of 1 Ohm resistors in parallel with the corresponding USB fuses on the board..<\/p>\n
I went down to the local electronics store, and bought some ‘1 Ohm’ resistors, and went ahead and soldered them in place – a bit of a fiddly job, and not helped by the ‘lead-free’ solder not ‘wetting’ very well..<\/p>\n
After all that, I plugged everything back together, but was then dismayed to see that the problem still persisted:<\/p>\n
hub 1-1.3.2:1.0: hub_port_status failed (err = -110)<\/strong> I was – to say the least – disappointed, but then decided to do the usual Kepner-Tregoe<\/em> thing, and check all the things I had changed, so far..<\/p>\n I was embarrassed to discover that the ‘1 Ohm’ resistors I had been sold, and marked as ‘1 Ohm’ on the bag they came in, were nothing of the sort!\u00a0\u00a0 According to the colour coding (which – in hindsight – I should have taken with me to the store..) they were about 0.16 Ohms, which probably explained why they were somewhat ineffective!<\/p>\n I did find a rather useful site that has a visual calculator\/display for these colour-codes: So – back to the drawing board, and I shall have to unsolder everything, and try again!<\/p>\n","protected":false},"excerpt":{"rendered":" I had got tired of trying all the so-called ‘recommendations’ for fixing USB hub connectivity on the Raspberry Pi – including some from people who did not actually own one..\u00a0\u00a0 And yes, I do have the correct voltage power supply etc. etc… So – I was happy to see that there was -at least – a potential …<\/span> Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[6,11,19,21],"tags":[148,185,306,313,319,383,422],"class_list":["post-394","post","type-post","status-publish","format-standard","hentry","category-crash-and-burn","category-hacks","category-opinion","category-raspberry-pi","tag-fail","tag-hardware-fix","tag-problems","tag-raspberry-pi-2","tag-resistors","tag-usb","tag-wrong"],"_links":{"self":[{"href":"https:\/\/rglinuxtech.com\/index.php?rest_route=\/wp\/v2\/posts\/394","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rglinuxtech.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rglinuxtech.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rglinuxtech.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rglinuxtech.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=394"}],"version-history":[{"count":0,"href":"https:\/\/rglinuxtech.com\/index.php?rest_route=\/wp\/v2\/posts\/394\/revisions"}],"wp:attachment":[{"href":"https:\/\/rglinuxtech.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=394"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rglinuxtech.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=394"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rglinuxtech.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=394"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nhub 1-1.3.2:1.0: hub_port_status failed (err = -110)<\/strong>
\nhub 1-1.3.2:1.0: hub_port_status failed (err = -110)<\/strong>
\nhub 1-1.3.2:1.0: hub_port_status failed (err = -110)<\/strong>
\nhub 1-1.3.2:1.0: hub_port_status failed (err = -110)<\/strong>
\nhub 1-1.3:1.0: hub_port_status failed (err = -110)<\/strong>
\nhub 1-1.3:1.0: hub_port_status failed (err = -110)<\/strong>
\nhub 1-1.3:1.0: hub_port_status failed (err = -71)<\/strong>
\nusb 1-1.3.2.1: USB disconnect, device number 16<\/strong>
\nhub 1-1.3:1.0: cannot reset port 2 (err = -71)<\/strong>
\nhub 1-1.3:1.0: cannot reset port 2 (err = -71)<\/strong>
\nhub 1-1.3:1.0: cannot reset port 2 (err = -71)<\/strong>
\nhub 1-1.3:1.0: cannot reset port 2 (err = -71)<\/strong><\/p>\n
\nhttp:\/\/www.qsl.net\/w\/wy3w\/3938\/CALCTEST\/resistance_calculator.htm<\/a><\/p>\n