USB serial drivers not loading with PL-2303 device

Jul 25, 2016 1 Replies

I'm trying to read from a USB serial card reader but it would appear that the drivers aren't working properly.



When I plug the device in I see the following in dmesg:-



[ 2998.909856] usb 1-1.5: new full-speed USB device number 13 using dwc_otg [ 2999.012599] usb 1-1.5: New USB device found, idVendor=067b, idProduct=2303 [ 2999.012644] usb 1-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 2999.012666] usb 1-1.5: Product: USB-Serial Controller [ 2999.012686] usb 1-1.5: Manufacturer: Prolific Technology Inc.

... but I should see something like:-



[85418.604327] usb 7-2: new full-speed USB device number 2 using uhci_hcd [85419.040763] USB Serial support registered for pl2303 [85419.040824] pl2303 7-2:1.0: pl2303 converter detected [85419.052517] usb 7-2: pl2303 converter now attached to ttyUSB0 [85419.052552] usbcore: registered new interface driver pl2303 [85419.052556] pl2303: Prolific PL2303 USB to serial adaptor driver


This is in Rasbian 7/Wheezy. I'm pretty sure the device *used* to work but I've not used it for a while and I just did an 'apt-get update; apt-get upgrade' and I'm wondering if something has got broken.



Any/all help very welcome.


Chris Green

On 07/25/16 07:53, Chris Green so wittily quipped:

check your /etc/apt/sources.list, see if it says 'wheezy' or 'stable'. If it says 'stable' you might've upgraded to 'jessie'.

I've been keeping my RPi's on wheezy since (last I checked) bluez was broken under jessie, badly so. I reported this months ago, with steps to reproduce the problem AND a sample workaround patch for one problem, and I occasionally check to see if it's been fixed [ok it's been a while, so maybe I should check again].

your story is so touching, but it sounds just like a lie "Straighten up and fly right"

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