From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: From: "Steve Simon" Date: Thu, 27 Oct 2016 11:40:52 +0100 To: 9fans@9fans.net MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: [9fans] usb serial on raspberry pi (again) Topicbox-Message-UUID: a6dcdb0a-ead9-11e9-9d60-3106f5b1d025 Hi, I have upgraded my pi desktop to a 3 which is noticable faster. I am using Richard's pi image which as usual works perfectly, but for one wrinkle. I cannot get the usb serial interfaces we use to work. I have never managed to get usb serial adapters to work with the raspberry pi, though never had problems on x86 boxen. The device I have to use (it is integrated into our gear) identifies itself as: 255 csp 0x0000ff vid 0x10c4 did 0xea60 'Silicon Labs' 'CP2102 USB to UART Bridge Controller' dwcotg ep6.1 enabled bulk rw speed full maxpkt 64 pollival 0 samplesz 0 hz 0 hub 2 port 4 busy and is set up with: b115200 c0 d0 e0 l8 m0 pn r0 s1 i0 dev(0) type(0) framing(0) overruns(0) berr(0) serr(0) Text into the pi works fine, but outgoing text seems stalled until text is received, I can type ahead and when I receive data the queued outgoing data is sent. does this ring any bells with anyone? any suggestions where to look in the usb serial code? -Steve