An ƙirƙiri sabon dongle don hana masu aikata laifuka ta yanar gizo yin amfani da tashoshin HDMI a matsayin hanyar lalata ƙarshen ƙarshen manufa. (yana buɗewa a sabon shafin) .
Abin da ake kira HDMI Firewall yana toshe duk hanyar sadarwa da ke shiga da fita ta tashar HDMI wacce ba ta da alaƙa kai tsaye da sauti ko bidiyo. Kowace tashar tashar HDMI tana buƙatar sabon dongle, amma ana iya sake fasalin mutum cikin sauƙi don dacewa da tashoshi daban-daban.
Wani “kingkevin” ne ya tsara dongle, wanda ya loda aikin zuwa wurin ajiyar lambar CuVodoo git.
Juyawa dongles kewaye
Tabbas, a zahiri tura dongle ba zai zama wani abu mai sauƙi ba ga wani ba tare da ƙwararrun ƙwarewa ba.
Don amfani da dongle, da farko wani zai buƙaci tsara shi don dacewa da tashar jiragen ruwa da ake amfani da shi. Wannan yana nufin kwafin bayanan Extended Display Identification Data (EDID), gami da bayanai kamar shawarwari masu goyan baya. Masu amfani za su iya karanta wannan bayanan tare da hanyar sadarwa ta I2C na tushen Nuni Data Channel (DDC) daga ƙarshen ƙarshen.
Mataki na gaba shine rubuta bayanan EDID a cikin EEPROM na HDMI Firewall, wanda ya zo tare da shafin kariya ta jiki wanda ke kulle EEPROM mai haɗawa daga rubutu na gaba.
Don matsar da dongle zuwa wata sabuwar na'ura, masu amfani suna buƙatar sake kashe kariyar rubutawa, ta hanyar sanya ɓangarorin solder a kan pads guda biyu akan na'urar, sake rubuta shi tare da sabon bayanan EDID na tashar tashar jiragen ruwa, da sake ba da kariya ta hanyar cire mai siyar da ke haɗawa. pads biyu.
Kamar yadda bayani ya gabata Tom ta Hardware , Mai haɗin HDMI yana ba da izinin wucewa fiye da bayanan sauti da bidiyo kawai. Ma'auratan ƙa'idodi masu kama da juna suna motsa ƙarin bayanai ta hanyar, gami da Babban-bandwidth Digital Content Protection, ko HDCP. Wannan ka'ida tana tabbatar da cewa bayanan da ke wucewa ta tashar jiragen ruwa ba a kwafi su cikin hanyar wucewa ba,
Sauran sanannun abubuwan da aka ambata sun haɗa da Gano-Tsarin Wuta (HPD), da Kula da Kayan Lantarki na Masu Amfani (CEC). Na ƙarshe ya shahara sosai, saboda yana ba da damar sarrafa nesa da sauran na'urori don sarrafa na'urorin.
via Tom Hardware