Re: kern/57531: Realtek EHCI prevents suspend on ThinkPad T495

[David Brownlee <abs%netbsd.org@localhost>]

The following reply was made to PR kern/57531; it has been noted by GNATS.

From: David Brownlee <abs%netbsd.org@localhost>
To: Taylor R Campbell <riastradh%netbsd.org@localhost>
Cc: gnats-bugs%netbsd.org@localhost
Subject: Re: kern/57531: Realtek EHCI prevents suspend on ThinkPad T495
Date: Tue, 18 Jul 2023 15:46:01 +0100

 On Tue, 18 Jul 2023 at 14:42, Taylor R Campbell <riastradh%netbsd.org@localhost> wrote:
 >
 > Can you please try the attached patch and see if anything goes haywire
 > with the affected EHCI device?
 
 with the patch, netbsd-10 boot messages changes:
 
 -ehci0: pre-2.0 USB rev, device ignored
 +ehci0: unknown USB rev: 0x00000000
 +ehci0: EHCI version 1.0
 +ehci0: Using DMA subregion for control data structures
 +usb0 at ehci0: USB revision 2.0
 
 Ignoring the cascading "X is now +1 for every usbX message" the other change was
 
 +uhub4 at usb0: NetBSD (0x0000) EHCI root hub (0x0000), class 9/0, rev
 2.00/1.00, addr 1
 +uhub4: 1 port with 1 removable, self powered