On Mon, 21 Apr 2008 11:26:35 +0100 Andy Green <[EMAIL PROTECTED]> babbled:
> -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Somebody in the thread at some point said: > | On Mon, 21 Apr 2008 10:28:54 +0100 Andy Green <[EMAIL PROTECTED]> babbled: > | > | Somebody in the thread at some point said: > | | quick one guys - where do i very quickly and reliably find out: > | | > | | 1. if bluetooth is up and active (what /proc or /sys magic file do i > need) > | > | One way is to parse /proc/bus/usb/devices... BT module has power and a > | reset thing, but looking at those states doesn't tell you if it is ready > | for duty. Or, if the BT device makes a network interface, test for > | presence of that. > | > |> herein lies the rub. no such thing on my gta02 kernel : > |> ( BUT ... /sus/bus/usb/devices/... is there but it seems to only > cover the usb > > You need mount -t usbfs usbfs /proc/bus/usb to get it -- but your sys > one is much better actually as you point out it doesn't depend on platform. > > You can fire up BT like this > > root@(none):~# echo 1 > > /sys/bus/platform/drivers/neo1973-pm-bt/neo1973-pm-bt.0/power_on > root@(none):~# echo 1 > > /sys/bus/platform/drivers/neo1973-pm-bt/neo1973-pm-bt.0/reset > root@(none):~# echo 0 > > /sys/bus/platform/drivers/neo1973-pm-bt/neo1973-pm-bt.0/reset > > Then you will find it in /sys/bus/usb/devices too, as "1-1" here. aaah there it is! grrr. still in the s3c2440 dir. just ... is... so... device.. specific! my engineering bones insist on finding a more generic way - like a generic kerel "hey - all bluetooth devices go here" thing.... no matter what baseboard it is or how they are wired up - the class of device has controls etc. there > If you walk the interfaces in subdirs 1-1:* looking at the interface class > > # cat /sys/bus/usb/devices/1-1/1-1\:1.0/bInterfaceClass > e0 AHA! the good 'ol e0! > you can find out what kind of device they are... > > http://www.comvcon.com/SelectUSBSDCs.html > > (Bluetooth = device class 0xe0) AHA!!! SCORE! just what i wanted. > Dunno if it is the "best" way, I had a look in libusb to see if it had a > better API or something but I didn't find any. At least it should work > on any Linux platform. yup. that's what i hoped - s with gta04 it will just work with no changes - it will find any bt device we have and "just work". i hate re-doing work. :) perfrect. i now have my bt device up - a 1-1 is there. i can now scan subdirs and look at bInterfaceClass and be happy. werd up to my homies. :) > - -Andy > > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.9 (GNU/Linux) > Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org > > iEYEARECAAYFAkgMa9MACgkQOjLpvpq7dMqfQACfYbrYv4vPhg4//AWRxIzEZRtm > w5QAoJDeZBcx+IO6uhgYaZbIwTq6hquf > =eyA7 > -----END PGP SIGNATURE----- > -- Carsten Haitzler (The Rasterman) <[EMAIL PROTECTED]>
