here is my lshal result udi = '/org/freedesktop/Hal/devices/usb_device_eba_1080_noserial_if0'   info.udi = '/org/freedesktop/Hal/devices/usb_device_eba_1080_noserial_if0'  (string)   linux.subsystem = 'usb'  (string)   linux.hotplug_type = 1  (0x1)  (int)   info.product = 'USB Vendor Specific Interface'  (string)   usb.interface.protocol = 0  (0x0)  (int)   usb.interface.subclass = 0  (0x0)  (int)   usb.interface.class = 255  (0xff)  (int)   usb.interface.number = 0  (0x0)  (int)   info.linux.driver = 'pl2303'  (string)   usb.linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:02.0/usb2/2-4/2-4: 1.0'  (string)   usb.configuration_value = 1  (0x1)  (int)   usb.num_configurations = 1  (0x1)  (int)   usb.num_interfaces = 1  (0x1)  (int)   usb.device_class = 0  (0x0)  (int)   usb.device_subclass = 0  (0x0)  (int)   usb.device_protocol = 0  (0x0)  (int)   usb.vendor_id = 3770  (0xeba)  (int)   usb.product_id = 4224  (0x1080)  (int)   usb.vendor = 'Unknown (0x0eba)'  (string)   usb.product = 'USB Vendor Specific Interface'  (string)   usb.device_revision_bcd = 1  (0x1)  (int)   usb.max_power = 500  (0x1f4)  (int)   usb.num_ports = 0  (0x0)  (int)   usb.linux.device_number = 4  (0x4)  (int)   usb.speed_bcd = 4608  (0x1200)  (int)   usb.version_bcd = 272  (0x110)  (int)   usb.is_self_powered = false  (bool)   usb.can_wake_up = false  (bool)   usb.bus_number = 2  (0x2)  (int)   info.bus = 'usb'  (string)   info.parent = '/org/freedesktop/Hal/devices/usb_device_eba_1080_noserial'  (string)   linux.sysfs_path_device = '/sys/devices/pci0000:00/0000:00:02.0/usb2/2-4/2-4:1.0'  (string)   linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:02.0/usb2/2-4/2-4:1.0'  (string) There is no linux.device_file, only sysfs path in sysfs path, i found there is a dir "ttyUSB0" but why my hal did not take the device as serial device? <div>On 2/1/07, Kay Sievers <<a href="mailto:kay.sievers@vrfy.org">kay.sievers@vrfy.org</a>> wrote:<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> On 2/1/07, Sam Hsu <<a href="mailto:joepasscheng@gmail.com">joepasscheng@gmail.com</a>> wrote: > when i use old HAL (version 0.4.2) > PL2303(USB-to-serial adaptor) will show > info.bus ==> usb-serial > serial.device ==> /dev/ttyUSB0 > > Now I use HAL <a href="http://0.5.7.1">0.5.7.1</a> (in gentoo) > info.bus ==> usb > and there is no serial.device > i need this information to handle my device > How can i solve this? > I did something wrong? See if linux.device_file is there? That's better anyway. And better don't depend on any of the weird "bus" properties, the device should have the capability "serial", right? Kay </blockquote></div>