Hi, I'm currently integrating runit and udev. I have a udev rule which
runs my Blue-Z startup scripts when I plug in the USB BT dongle:
ACTION=="add", ENV{SUBSYSTEM}=="bluetooth", RUN+="/usr/bin/sv up bluetooth"
This works really well, cold plugging, etc. No problems.
I've found an interesting quirk though. Here is the sequence of events:
Computer A: I start up my system with the BT dongle inserted, the Blue-Z
scripts are started via udev coldplugging script
Computer B: I set up a task which searches for BT devices and tries to
form a PPP connection
Computer B: Detects the BT dongle on Computer A, records the address and
forms a PPP connection
Computer A: I disable the Blue-Z scripts # sv down bluetooth
Computer B: Attempts to connect to A again, and sends a BT signal to
connect ...
Computer A: The BT dongle sends a wireless wakeup (wake-on-lan?) signal
which causes udev to run the Blue-Z utils startup script again ...
I looked at the udev events to see what was happening when Computer B
tried to connect to Computer A. It appears that the two series of events
are nearly identical. Can someone suggest a way for me to start the
Blue-Z utils *only* when the USB dongle is *inserted* (or first detected).
events caused by plugging in USB Bluetooth dongle:
UDEV [883613218.457062] add
/devices/platform/at91_ohci/usb1/1-1/1-1.2/1-1.2:1.0/hci0 (bluetooth)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/platform/at91_ohci/usb1/1-1/1-1.2/1-1.2:1.0/hci0
SUBSYSTEM=bluetooth
SEQNUM=317
UDEVD_EVENT=1
UDEV [883613231.342314] add
/devices/platform/at91_ohci/usb1/1-1/1-1.2/1-1.2:1.0/hci0/acl000F3D5F7205
(bluetooth)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/platform/at91_ohci/usb1/1-1/1-1.2/1-1.2:1.0/hci0/acl000F3D5F7205
SUBSYSTEM=bluetooth
SEQNUM=325
UDEVD_EVENT=1
Events caused by trying to connect to the USB Bluetooth dongle from
another Bluetooth device:
UDEV [883613131.133343] add
/devices/platform/at91_ohci/usb1/1-1/1-1.2/1-1.2:1.0/hci0/acl000F3D5F7205
(bluetooth)
UDEV_LOG=3
ACTION=add
DEVPATH=/devices/platform/at91_ohci/usb1/1-1/1-1.2/1-1.2:1.0/hci0/acl000F3D5F7205
SUBSYSTEM=bluetooth
SEQNUM=295
UDEVD_EVENT=1
Aras Vaichas
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