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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