udev alzheimers
greetings all;
Since updating to stretch, udev has been randomly swapping ttyUSB0 and
ttyUSB1 and sometimes ttyUSB2 around, confusing the hell out of heyu, a
trs-80-coco3, and occasionally even nut. Nut (apc ups) is not on a
usb-serial adapter, it just a usb cable but the other 2 are on
individually unique FTDI adaptors.
What udev persistent file, and where is it, do I edit and chattr +i to
effect a permanent cure for this apparently random device renaming?
And whats the command to restart udev from a clean slate without
rebooting?
These are the ttyUSB ports that need persistent names:
root@coyote:rules.d$ usb-devices|grep -C4 SERIAL
T: Bus=01 Lev=01 Prnt=01 Port=09 Cnt=01 Dev#= 2 Spd=12 MxCh= 0
D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=0403 ProdID=6001 Rev=04.00
S: Manufacturer=FTDI
S: Product=USB HS SERIAL CONVERTER
S: SerialNumber=FTDHG45D
C: #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=44mA
I: If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=ftdi_sio
--
T: Bus=01 Lev=02 Prnt=04 Port=02 Cnt=02 Dev#= 7 Spd=12 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=0403 ProdID=6001 Rev=06.00
S: Manufacturer=FTDI
S: Product=USB FAST SERIAL ADAPTER
S: SerialNumber=FTOOS09N
C: #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=100mA
I: If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=ftdi_sio
Thanks.
Cheers, Gene Heskett
--
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- Louis D. Brandeis
Genes Web page <http://geneslinuxbox.net:6309/gene>
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