usbserial != serial

[Peter Senna Tschudin]

Dear list,

To read and write to serial ports from Kernel space I would take a
look at /proc/ioports to find out the address range of the port I want
to use.
# cat ioports |grep serial
03f8-03ff : serial

Then I would use inb() functions outb() to read and write from I/O registers.

But how can I figure it out the address range for usb-serial
/dev/ttyUSB0? There is nothing at /proc/ioports. My device uses
cypress_m8 and usbserial modules.

How bad is using filp_open() to open /dev/ttyUSB0?

Thanks,

Peter

-- 
Peter Senna Tschudin
peter.senna at gmail.com
gpg id: 48274C36