Hi, > > > I have a pl2303 USB-RS232 converter that cannot be reliably > > > detected. > > > > Faulty hardware? Flaky cables? Bad connections? If this is > > reproducable for the same device on multiple machines, I'd just go buy > > a > > new device :) > > I decided to give it a last try before planning a replacement - then I > find that /dev/ttyUSB0 could be created if I enlarge the retry times. > > It could take 10 seconds to get a valid response. It must go crazy. Detected _instantly_ on 2.6.28 here: [59750.560209] usb 1-1: USB disconnect, address 5 [59750.561888] pl2303 ttyUSB0: pl2303 converter now disconnected from ttyUSB0 [59750.561970] pl2303 1-1:1.0: device disconnected [59752.904108] usb 1-1: new full speed USB device using uhci_hcd and address 6 [59753.059546] usb 1-1: configuration #1 chosen from 1 choice [59753.061460] pl2303 1-1:1.0: pl2303 converter detected [59753.114738] usb 1-1: pl2303 converter now attached to ttyUSB0 (the 3-second delay basically was me waiting before reinserting) Bus 001 Device 006: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port Label: "GMUS-03 USB Serial Adapter" Detection test only, _not_ used for actual serial communication currently... But there are more PL2303 adapters than flies on this planet, thus someone else also has some input on this? Andreas Mohr -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
