Tag Archives: usb

Amazon Device Farm 支援讓使用者直接連上去 debug 了...

Amazon Device Farm 推出這樣的功能又朝著設備租賃服務更進一步了:「Amazon Device Farm Launches Direct Device Access for Private Devices」。 Now, with direct device access, mobile applications developers can use individual devices in their private test set as if they were directly connected to their local machine … Continue reading

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因為一條 USB 線燒了三個設備...

Benson Leung 花了不少時間在測試 USB 線 (「Google 工程師在 Amazon 上留下對 USB-C 線的精彩評價...」與「Google 工程師在 Amazon 上對 Type C USB 線的評論」),而前陣子他測到一條超棒的 USB 線,把他三個測試設備都燒壞了:(出自這邊) Surjtech's A-to-C cable seriously damaged a Pixel 2 laptop and two USB PD analyzers. 他在 Amazon 上留下的說明可以看到他發現廠商直接把 GND 與 Vbus … Continue reading

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Google 工程師在 Amazon 上對 Type C USB 線的評論

先前提到「Google 工程師在 Amazon 上留下對 USB-C 線的精彩評價...」,後來這位工程師 Benson Leung 寫了更多的評價出來,在「Amazon.com: Profile for Benson Leung」這邊可以看到。 可以看到大量的線被打了兩顆星,不過還是少數有幾條線測過了: USB Type C cable (USB-C) to USB3.0 Type A: TRUE CURRENT Aluminum shell and Braid Shield cable Reversible for Macbook, Oneplus2,Nexus 5x, Nexus 6P, Huawei and … Continue reading

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Google 工程師在 Amazon 上留下對 USB-C 線的精彩評價...

在「A Google engineer is reviewing USB-C cables on Amazon, and it’s awesome」這邊看到的: 直接拿規格書說這東西沒照規矩來,打臉打輕一點啊啊啊 XDDD

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Benchmark DAC2 HGC 在 Ubuntu 14.04 LTS 下使用 USB 沒有聲音的問題

記得剛買來的時候是有聲音的,後來突然有一天沒聲音... 試了一堆方法都沒用 (換 kernel 版本、禁用 xHCI、換 USB 線、...),最後是在「Benchmark DAC2 HGC impressions (and Linux setup notes)」這邊看到方法。 這邊有幾個重點: DAC2's USB 1.0 mode doesn't work with Linux kernel 3.8.x, but USB 2.0 does. So switch it to USB 2.0 and forget about it. … Continue reading

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為 Open Source Hardware 發放 USB Product ID 的 pid.codes

pid.codes 的說明就很清楚了:「Welcome to pid.codes」。 由於 USB-IF 對每個 vendor 收 USD$5000,而且不可以跟其他單位共用: If you’re a maker, hobbyist, or startup company producing your own USB device, you’ve probably discovered that you need a USB Vendor ID and Product ID to uniquely identify your … Continue reading

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對 Tor 的攻擊開始了...

先前幾天 Tor 官方才猜測會被攻擊 (Tor 官方預測將會被攻擊),在今天的 Hacker News Daily 就看到有機器被扣:「[tor-talk] Warning: Do NOT use my mirrors/services until I have reviewed the situation」。 Tonight there has been some unusual activity taking place and I have now lost control of all servers under … Continue reading

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很特別的 Side-channel attack 方法以取得 RSA 與 ElGamel 的 private key

在「A new Side channel attack-how to steal encryption keys by touching PCs」這邊看到一種很特別的 side-channel attack:(直接先看圖) 引用說明: The signal can also be measured at the remote end of Ethernet, VGA or USB cables. 方法愈來愈特別了 XDDD

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28 Port 的 USB Hub...

看到「MondoHub: 28 USB Ports & One Hub To Rule Them All」: 瞬間有種「沃槽這什麼鬼東西」... 28 Port 是 24 個 USB 2.0 以及 4 個 USB 3.0: The 28-Port MondoHub features 24 USB 2.0 ports and 4 USB 3.0 ports to give you … Continue reading

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GPS logger:環天的 DG-100...

在 24h 上買了這顆「DG-100 GPS 數據紀錄器」,然後在 VirtualBox 裡吃鱉了好幾次,所以還是整理一下,讓之後的人比較好辦事 XD 用過的兩顆 GPS logger 都是用 Prolific 的 PL2303 系列晶片,透過 Serial port 的架構溝通,所以 Ubuntu 下會抓到 /dev/ttyUSB0 這種界面。 由於我的目的比較簡單,只要可以抓 gpx 資訊給我就好,後來在 OpenStreetMap 的 wiki 上找到「Globalsat」的資訊,發現了 GPSBabel 這個軟體可以直接在 Mac OS X 與 Linux 下抓 DG-100 的資料: … Continue reading

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