From: Marek Vasut <marex@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] usb: hub: allow pgood_delay to be specified via env
Date: Mon, 6 Apr 2015 16:58:11 +0200 [thread overview]
Message-ID: <201504061658.11313.marex@denx.de> (raw)
In-Reply-To: <1428329107-2294-1-git-send-email-tharvey@gateworks.com>
On Monday, April 06, 2015 at 04:05:07 PM, Tim Harvey wrote:
> Some USB devices break the spec and require longer warm-up times. Allow
> the usb_pgood_delay env variable to override the calculated time.
>
> I have encountered this specficically with several different sized/branded
> USB sticks with VID:PID 058f:6387 (Alcor Micro Corp. Transcend JetFlash)
> where I need to set usb_pgood_delay to 2000ms to make them detectable.
>
> Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Hi!
this looks like a good idea. I have a hint for improvement -- in case you
get a timeout waiting for the device to be detected, maybe the error message
should mention that you can try setting this env variable and try again ?
Best regards,
Marek Vasut
next prev parent reply other threads:[~2015-04-06 14:58 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-06 14:05 [U-Boot] [PATCH] usb: hub: allow pgood_delay to be specified via env Tim Harvey
2015-04-06 14:58 ` Marek Vasut [this message]
2015-04-07 14:52 ` Tim Harvey
2015-04-07 15:34 ` Stephen Warren
2015-04-07 16:04 ` Tim Harvey
2015-04-07 18:55 ` Marek Vasut
2015-04-08 16:50 ` Tim Harvey
2015-04-08 19:21 ` [U-Boot] [PATCH v2] " Tim Harvey
2015-04-11 16:59 ` Marek Vasut
2015-04-11 17:08 ` Marek Vasut
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