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| author | Ian Abbott <abbotti@mev.co.uk> | 2026-01-30 19:47:58 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-04-02 16:49:39 +0300 |
| commit | b9723ebe043b49a93f4777173e202c2be5b53dcd (patch) | |
| tree | a98bb7afb9fefe7f3da60432bc9521485ff21b72 /include/linux/tty_buffer.h | |
| parent | 7e33ddd6d0282f34e63393e38110a3441a79f20a (diff) | |
| download | linux-b9723ebe043b49a93f4777173e202c2be5b53dcd.tar.xz | |
comedi: pcl724: Add sanity checks for I/O base address
The "pcl724" driver uses an admin-supplied configuration option
(`it->options[0]`) to configure the I/O port base address of various
8255 chip-based digital I/O ISA boards from Advantech, ADLINK,
WinSystems, and Diamond Systems. It currently allows any base address
to be configured but the hardware only supports base addresses
(configured by on-board DIP switches or jumpers) in various ranges, and
on various alignment boundaries, depending on the model.
Store the minimum and maximum supported I/O address ranges in the static
board information array elements (the required alignment is already
stored in the `io_range` member), and add a sanity check to ensure the
device is not configured at an unsupported base address.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://patch.msgid.link/20260130170416.49994-34-abbotti@mev.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/tty_buffer.h')
0 files changed, 0 insertions, 0 deletions