Re: [PATCH v2] ata: pata_via: Force PIO for ATAPI devices on VT6415/VT6330

[Niklas Cassel <cassel@kernel.org>]

Hello Ioannis,

Please always CC maintainers.

On Wed, May 21, 2025 at 11:14:47PM +0300, Ioannis Barkas wrote:
> Hello guys!
> 
> cdrecord -vvv -atip produces an error using my AD-7200A on VT6415
> controller at my installation as you can see below:

Do you get this after applying the VT6415 patch in $subject?
Or does this command work on latest kernel without the patch in $subject?

(snip)

> Taso you can update your drive to version 1.09 and retest. Also please
> share a dmesg to identify the errors you get and the kernel in use.
> Output from IDE controller PCI config could be handy:
> sudo lspci -nnnnvvvvxxxxks 05:00.1
> 
> Guys cable detect seems broken. With a 40 conductor cable in Linux I get:
> ata3.00: ATAPI: Optiarc DVD RW AD-7200A, 1.09, max UDMA/66
> also UDMA 4 is selected in hdparm while BIOS says UDMA 2
> 
> Finally cdrecord -vvv -atip command is not working properly with 40
> conductor cable. I get wrong results but no hang was observed at all
> during the tests.

There was a different patch from Tasos WRT 40 wire cable recently:
https://lore.kernel.org/linux-ide/20250519085945.1399466-1-tasos@tasossah.com/

Did you include this patch when testing or not?


Kind regards,
Niklas