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Subject
- Posted on
- H.Nestler
July 15, 2003, 7:09 am

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
---------------------------------------
SSV SOFTWARE SYSTEMS GmbH
Heisterbergallee 72
D-30453 Hannover
http://www.ssv-embedded.de
Phone: +49(0)511/40 000-0
Fax: +49(0)511/40 000-40
Email: snipped-for-privacy@ist1.de
---------------------------------------
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
---------------------------------------
SSV SOFTWARE SYSTEMS GmbH
Heisterbergallee 72
D-30453 Hannover
http://www.ssv-embedded.de
Phone: +49(0)511/40 000-0
Fax: +49(0)511/40 000-40
Email: snipped-for-privacy@ist1.de
---------------------------------------

Re: USB SL811 and serial devices FTDI SIO or PL2303
Hello Marco!
I'm happy, so I hop it's not my base drivers error.
Can you send me your actual drivers for Prolific PL2303 ?
Best reagrds,
Henry
Henry Nestler
---------------------------------------
SSV SOFTWARE SYSTEMS GmbH
Heisterbergallee 72
D-30453 Hannover
http://www.ssv-embedded.de
Phone: +49(0)511/40 000-0
Fax: +49(0)511/40 000-40
Email: snipped-for-privacy@ist1.de
---------------------------------------

from
post
I'm happy, so I hop it's not my base drivers error.
Can you send me your actual drivers for Prolific PL2303 ?
Best reagrds,
Henry
Henry Nestler
---------------------------------------
SSV SOFTWARE SYSTEMS GmbH
Heisterbergallee 72
D-30453 Hannover
http://www.ssv-embedded.de
Phone: +49(0)511/40 000-0
Fax: +49(0)511/40 000-40
Email: snipped-for-privacy@ist1.de
---------------------------------------

from
post

Re: USB SL811 and serial devices FTDI SIO or PL2303
Old driver makes a lot of interrupts, if device is inserted and loso, if not
inserted.
This do the Bulk/Timeout on serial and other devices. (I think)
I have found a driver sl811.o for kernel 2.4.22 and downpatch this into
2.4.20, add somthing for ARM and x86 architecture.
The Alternate driver now support isochornous mode and more effective than
hc_sl811.o.
ftp://ssv-embedded.de/ssv/products/board/usb1104/linux-2.4.20-usb-20030923.p
atch.gz
Henry
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