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| author | Christian Poessinger <christian@poessinger.com> | 2020-06-08 22:45:04 +0200 |
|---|---|---|
| committer | Christian Poessinger <christian@poessinger.com> | 2020-06-09 21:00:39 +0200 |
| commit | bafa91b945ac77e2e1d000e356ca819bd5f87460 (patch) | |
| tree | d87af7b732f1ae61ddf3299b9af7f5c319b57d3c /interface-definitions | |
| parent | 7b565f0bcc0dcfc7aa95cdbbb63264f5ba41456e (diff) | |
| download | vyos-1x-bafa91b945ac77e2e1d000e356ca819bd5f87460.tar.gz vyos-1x-bafa91b945ac77e2e1d000e356ca819bd5f87460.zip | |
console: T2529: migrate from ttyUSB device to new device in /dev/serial/by-bus
During testing it was discovered that there is a well known problem (we had for
ethernet interfaces) also in the serial port world. They will be enumerated and
mapped to /dev/ttyUSBxxx differently from boot to boot. This is especially
painful on my development APU4 board which also has a Sierra Wireless MC7710
LTE module installed.
The serial port will toggle between ttyUSB2 and ttyUSB5 depending on the
amount of serial port extenders attached (FT4232H).
The shipped udev rule (/usr/lib/udev/rules.d/60-serial.rules) partly solves
this by enumerating the devices into /dev/serial/by-id folder with their name
and serial number - it's a very good idea but I've found that not all of the
FT4232H dongles have a serial number programmed - this leads to the situation
that when you plug in two cables with both having serial number 0 - only one
device symlink will appear - the previous one is always overwritten by the
latter one.
Derive /usr/lib/udev/rules.d/60-serial.rules and create a /dev/serial/by-bus
directory and group devices by attached USB root port.
Diffstat (limited to 'interface-definitions')
| -rw-r--r-- | interface-definitions/system-console.xml.in | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/interface-definitions/system-console.xml.in b/interface-definitions/system-console.xml.in index ccaaa51b2..71e63d0cb 100644 --- a/interface-definitions/system-console.xml.in +++ b/interface-definitions/system-console.xml.in @@ -11,20 +11,24 @@ <tagNode name="device"> <properties> <help>Serial console device name</help> + <completionHelp> + <script>ls -1 /dev | grep -e ttyS -e hvc</script> + <script>if [ -d /dev/serial/by-bus ]; then ls -1 /dev/serial/by-bus; fi</script> + </completionHelp> <valueHelp> <format>ttySN</format> - <description>Serial device name</description> + <description>TTY device name, regular serial port</description> </valueHelp> <valueHelp> - <format>ttyUSBX</format> - <description>USB Serial device name</description> + <format>usbNbXpY</format> + <description>TTY device name, USB based</description> </valueHelp> <valueHelp> - <format>hvc0</format> + <format>hvcN</format> <description>Xen console</description> </valueHelp> <constraint> - <regex>^(ttyS|ttyUSB|hvc)[0-9]+$</regex> + <regex>^(ttyS[0-9]+|hvc[0-9]+|usb[0-9]+b.*)$</regex> </constraint> </properties> <children> |