Andrea Viciani wrote:
I should use a device with USB to serial interface by Cypress
Semiconductor (Vendor ID: 0x04b4 and Product ID: 0x5500) on a computer
with Scientific Linux 4.6.
The kernel that i use is 2.6.9-67 and the support for the cypress chip
is only from kernel 2.6.10 with the module "cypress_m8".
Since I can not upgrade the kernel, is it possibile found a driver for
that chip working under kernel 2.6.9?
This is the cat of /proc/bus/usb/devices:
... snip...
If the vendor doesn't supply a driver, you might try the following.
One could try grabbing the source from 2.6.10 and extracting the
driver. It should be in source/drivers/usb/serial/
Probably a .c and .h file, check the makefile for any compiling specifics.
Copy the source files to your 2.6.9-67 source tree, update the Makefile
(and probably the Kconfig).
The compile it like: make -C /lib/modules/`uname -r`/build
CONFIG_USB_SERIAL_CYPRESS_M8 SUBDIRS=$PWD modules
I think that would do it, but haven't tried. Might be some quirks in
there I missed.
Other than that, kernel upgrade or purchasing a supported product might
be the best route. Personally, I've been using the Digi Edgeport 4m for
my 4 port serial adapters and Easy Sync LTD for my 16 ports. Both work
fine under SL 4.1 for me.
Hope that helps.
Cheers,
Mark
--
Mr. Mark V. Stodola
Digital Systems Engineer
National Electrostatics Corp.
P.O. Box 620310
Middleton, WI 53562-0310 USA
Phone: (608) 831-7600
Fax: (608) 831-9591
