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#1 2012-10-18 15:43:19

dlin
Member
From: Taipei,Taiwan
Registered: 2005-09-21
Posts: 264

[SOLVED] my USB2TTL(/dev/ttyUSB0) can NOT work after use systemd

I upgrade to use systemd.

But now  the USB2TTL device can not work anymore.

When I plug in the systemd linux, it won't show any message on /var/log/messages.
Before upgrade, It will show the following messages, and I can use minicom to connect my device through the USB2TTL cable.

[ 4799.549830] usb 1-4.2: new full-speed USB device number 7 using ehci_hcd
[ 4799.672196] usbcore: registered new interface driver usbserial
[ 4799.672212] usbcore: registered new interface driver usbserial_generic
[ 4799.672221] USB Serial support registered for generic
[ 4799.672230] usbserial: USB Serial Driver core
[ 4799.676726] usbcore: registered new interface driver pl2303
[ 4799.676739] USB Serial support registered for pl2303
[ 4799.676757] pl2303 1-4.2:1.0: pl2303 converter detected
[ 4799.677690] usb 1-4.2: pl2303 converter now attached to ttyUSB0

It seems a problem related to 'poor connection'

Last edited by dlin (2012-11-14 01:29:01)


Running 4 ArchLinux including sh4twbox,server,notebook,desktop. my AUR packages, old project Arch on colinux,

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