Mark Stodola wrote:
> 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
>
Oops, there should be an '=m' after the CONFIG_USB_SERIAL_CYPRESS_M8.

-- 
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