USB SL811 and serial devices FTDI SIO or PL2303
From: H.Nestler (hne-REMOVE_at_ist1.de)
Date: 07/15/03
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Date: Tue, 15 Jul 2003 09:09:15 +0200
I'm using x86 kernel 2.4.20 and a embedded USB host controller SL811 from
Cypress.
I have two serial adapters, used with drivers FTDI SIO and Prolific PL2303.
These drivers have the following problems:
I can only transmit data
CR and LF can not send as raw
I can not receive any data or control signals (CTS, DCD)
After insert, I see some "usb_control/bulk_msg: timeout"
If I remove hardware, drivers crashed with NULL pointer
The loades drivers for USB:
pl2303 9784 0
usbserial 17544 0 [pl2303]
hc_sl811 12636 0 (unused)
usbcore 55040 1 [pl2303 usbserial hc_sl811]
The same serial driver driver on my desktop have the same probem.
Hardware is OK. System works fine with USB-Floppy and memory sticks. I can
insert and remove, mount and umount and all other things.
Anybody works with this USB ore serial devices on USB controller?
Who has some suggestions?
Henry Nestler
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