From: Michal Pecio <michal.pecio@gmail.com>
To: Sean Rhodes <sean@starlabs.systems>
Cc: Ulf Hansson <ulfh@kernel.org>, Arnd Bergmann <arnd@arndb.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Ricky Wu <ricky_wu@realtek.com>, Lee Jones <lee@kernel.org>,
Roger Tseng <rogerable@realtek.com>,
Dan Carpenter <error27@gmail.com>,
Jisheng Zhang <jszhang@kernel.org>,
linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 1/2] misc: rtsx_usb: avoid USB I/O in runtime autosuspend
Date: Tue, 13 Oct 2026 14:27:37 +0200 [thread overview]
Message-ID: <20261013142737.7b10a5b0.michal.pecio@gmail.com> (raw)
In-Reply-To: <CABtds-3t+ECCPeFShq__iNa9niRAge=WOED4cHtNZAFVw6kPzw@mail.gmail.com>
On Mon, 12 Oct 2026 22:34:14 +0100, Sean Rhodes wrote:
> > How is the driver supposed to detect card insertion after the last
> > poll but before the reader goes to suspend and can issue remote
> > wakeup?
>
> The reader uses remote wake; what hardware are you testing on?
I have a card reader with RTS5178 and a simple SD slot, no tray.
Remote wake doesn't work when the reader is not suspended, so before
suspending we used to check one last time that no new card has been
inserted. This made sense.
Any delay between the last time the reader is polled (by anyone, for
any reason) and actually placed in suspend is a time when a new card
can be inserted and completely undetected, forever.
Regards,
Michal
next prev parent reply other threads:[~2026-10-13 12:27 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-06 15:40 [PATCH v2 0/2] rtsx_usb: fix tray-reader false card detect and autosuspend Sean Rhodes
2026-07-06 15:40 ` [PATCH v2 1/2] misc: rtsx_usb: avoid USB I/O in runtime autosuspend Sean Rhodes
2026-10-05 8:30 ` Michal Pecio
2026-10-12 21:34 ` Sean Rhodes
2026-10-13 12:27 ` Michal Pecio [this message]
2026-10-13 12:31 ` Sean Rhodes
2026-10-13 12:38 ` Michal Pecio
2026-10-13 13:48 ` Sean Rhodes
2026-10-14 20:24 ` Michal Pecio
2026-07-06 15:40 ` [PATCH v2 2/2] mmc: rtsx_usb_sdmmc: suppress false CD after init timeout Sean Rhodes
2026-07-10 13:21 ` [PATCH v2 0/2] rtsx_usb: fix tray-reader false card detect and autosuspend Ulf Hansson
2026-07-10 14:23 ` Greg Kroah-Hartman
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