USB2Serial Converter (PL 2303HX) Device Failed to Work in RHEL4
Issue
An user space application receives data by the means of an RS-232 port, which uses an USB2Serial converter but the USB2Serial converter Hardware is not working Following is the errors being shown:
usb 2-1.1: new full speed USB device using address 7 ehci_hcd 0000:00:1d.0: qh f624b480 (#0) state 1 pl2303 2-1.1:1.0:
PL-2303
converter detected usb 2-1.1: PL-2303 converter now attached to ttyUSB0
usb 2-1.2: new high speed USB device using address 8
The output of dmesg command related is:
usb 2-1.8: USB disconnect, address 12
usb 2-1.1: new full speed USB device using address 14
ehci_hcd 0000:00:1d.0: qh f624b600 (#0) state 1
pl2303 2-1.1:1.0: PL-2303 converter detected usb 2-1.1:
PL-2303 converter now attached to ttyUSB0
PL-2303 ttyUSB0: pl2303_open - failed submitting interrupt urb, error -28
PL-2303 ttyUSB0: PL-2303 converter now disconnected from ttyUSB0
Environment
- Red Hat Enterprise Linux WS release 4 (Nahant Update 1)
- kernel-2.6.9-11.ELsmp i686 GNU/Linux
- USB serial convertor chipset - PL 2303HX
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