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Subjectisa memory address

I'm working with an old data acquisition system that uses an 8-bit card
in an ISA slot (address 0xd0000), by a simple driver I ported from
kernel 1.1.x to 2.2.24.

It works fine, but I'd like to have features by newer kernels (2.4 or
even 2.6), like new filesystems support.

On kernels >=2.4.0 check_region returns -EBUSY for that address,
but it is not actually used; I tried to understand if something has been
changed/removed, because of obsolescence of devices, in IO management,
but I couldn't.

Does anybody have any explanation/suggestion?

Thank you

Best Regards,

Antonino Sergi

PS:As I'm not subscribed, please CC me your answers.

Antonino Sergi <>

Radiodating Laboratory
Physics Department
University of Rome "La Sapienza"
P.le Aldo Moro 2
00185 Rome Italy
Tel +390649914206
Fax +390649914208

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