On 2007-11-07, Paul Sijben <[EMAIL PROTECTED]> wrote: > To automate/ease configuration in my app I am trying to find > out to which serial port a certain bluetooth device is > connected. With pybluez I can find out which bluetooth devices > I have, but it will not tell me the serial port they are > mapped to. > > Is there a way to figure this out from python? (I am > insterested in the platforms WinXP and linux primarily)
Under linux, the "right" thing to do is to write a udev rule so that the device has a predictiable name (or symlink). http://reactivated.net/writing_udev_rules.html If you don't want to write a udev rule, you'll need to bascally re-implement udev by parsing the sysfs directory tree until you find the device you're looking for. Here's how to do it for USB (I assume BT works in a similar fashion). Let's say I know the device has vendor ID 0403, product ID 6001, and serial number 123456. I search through the directories under /sys/devices until I find a directory containing three files named idProduct idVendor serial Which contain the three strings I'm looking for. In this case: # cat /sys/devices/pci0000:00/0000:00:10.3/usb5/5-1/idVendor 0403 # cat /sys/devices/pci0000:00/0000:00:10.3/usb5/5-1/idProduct 6001 # cat /sys/devices/pci0000:00/0000:00:10.3/usb5/5-1/serial 12345678 Once you've found that directory, you can look at the other entries to find out whatever you want to know about the device: /sys/devices/pci0000:00/0000:00:10.3/usb5/5-1/ |-- 5-1:1.0 | |-- bAlternateSetting | |-- bInterfaceClass | |-- bInterfaceNumber | |-- bInterfaceProtocol | |-- bInterfaceSubClass | |-- bNumEndpoints | |-- bus -> ../../../../../../bus/usb | |-- driver -> ../../../../../../bus/usb/drivers/ftdi_sio | |-- ep_02 -> ../../../../../../devices/pci0000:00/0000:00:10.3/usb5/5-1/5-1:1.0/usbdev5.42_ep02 | |-- ep_81 -> ../../../../../../devices/pci0000:00/0000:00:10.3/usb5/5-1/5-1:1.0/usbdev5.42_ep81 | |-- interface | |-- modalias | |-- power | | |-- state | | `-- wakeup | |-- subsystem -> ../../../../../../bus/usb | |-- ttyUSB0 | | |-- bus -> ../../../../../../../bus/usb-serial | | |-- driver -> ../../../../../../../bus/usb-serial/drivers/ftdi_sio | | |-- power | | | |-- state | | | `-- wakeup | | |-- subsystem -> ../../../../../../../bus/usb-serial | | |-- tty:ttyUSB0 -> ../../../../../../../class/tty/ttyUSB0 | | `-- uevent | |-- uevent | |-- usb_endpoint:usbdev5.42_ep02 -> ../../../../../../devices/pci0000:00/0000:00:10.3/usb5/5-1/5-1:1.0/usbdev5.42_ep02 | |-- usb_endpoint:usbdev5.42_ep81 -> ../../../../../../devices/pci0000:00/0000:00:10.3/usb5/5-1/5-1:1.0/usbdev5.42_ep81 | |-- usbdev5.42_ep02 | | |-- bEndpointAddress | | |-- bInterval | | |-- bLength | | |-- bmAttributes | | |-- dev | | |-- device -> ../../../../../../../devices/pci0000:00/0000:00:10.3/usb5/5-1/5-1:1.0 | | |-- direction | | |-- interval | | |-- power | | | |-- state | | | `-- wakeup | | |-- subsystem -> ../../../../../../../class/usb_endpoint | | |-- type | | |-- uevent | | `-- wMaxPacketSize | `-- usbdev5.42_ep81 | |-- bEndpointAddress | |-- bInterval | |-- bLength | |-- bmAttributes | |-- dev | |-- device -> ../../../../../../../devices/pci0000:00/0000:00:10.3/usb5/5-1/5-1:1.0 | |-- direction | |-- interval | |-- power | | |-- state | | `-- wakeup | |-- subsystem -> ../../../../../../../class/usb_endpoint | |-- type | |-- uevent | `-- wMaxPacketSize |-- bConfigurationValue |-- bDeviceClass |-- bDeviceProtocol |-- bDeviceSubClass |-- bMaxPacketSize0 |-- bMaxPower |-- bNumConfigurations |-- bNumInterfaces |-- bcdDevice |-- bmAttributes |-- bus -> ../../../../../bus/usb |-- configuration |-- devnum |-- driver -> ../../../../../bus/usb/drivers/usb |-- ep_00 -> ../../../../../devices/pci0000:00/0000:00:10.3/usb5/5-1/usbdev5.42_ep00 |-- event_char |-- idProduct |-- idVendor |-- manufacturer |-- maxchild |-- power | |-- state | `-- wakeup |-- product |-- serial |-- speed |-- subsystem -> ../../../../../bus/usb |-- uevent |-- usb_device:usbdev5.42 -> ../../../../../class/usb_device/usbdev5.42 |-- usb_endpoint:usbdev5.42_ep00 -> ../../../../../devices/pci0000:00/0000:00:10.3/usb5/5-1/usbdev5.42_ep00 |-- usbdev5.42_ep00 | |-- bEndpointAddress | |-- bInterval | |-- bLength | |-- bmAttributes | |-- dev | |-- device -> ../../../../../../devices/pci0000:00/0000:00:10.3/usb5/5-1 | |-- direction | |-- interval | |-- power | | |-- state | | `-- wakeup | |-- subsystem -> ../../../../../../class/usb_endpoint | |-- type | |-- uevent | `-- wMaxPacketSize `-- version If you want to search by something other than the product id, vendor id and serial number, then pick some other of the files above that will have identifiable contents and look for that. -- Grant Edwards grante Yow! We just joined the at civil hair patrol! visi.com -- http://mail.python.org/mailman/listinfo/python-list
