From: Greg KH <greg@kroah.com>
To: linux-usb-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] USB and Driver Core patches for 2.6.10
Date: Fri, 7 Jan 2005 21:47:47 -0800 [thread overview]
Message-ID: <11051632672444@kroah.com> (raw)
In-Reply-To: <1105163267561@kroah.com>
ChangeSet 1.1938.446.30, 2004/12/17 11:41:02-08:00, mdharm-usb@one-eyed-alien.net
[PATCH] USB Storage: Increase Genesys delay
This is patch as436 from Alan Stern.
This patch increases the delay used for Genesys devices about 10%. At
least one user reports that this created a significant improvement in
operation.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>
drivers/usb/storage/transport.c | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)
diff -Nru a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c
--- a/drivers/usb/storage/transport.c 2005-01-07 15:46:51 -08:00
+++ b/drivers/usb/storage/transport.c 2005-01-07 15:46:51 -08:00
@@ -992,9 +992,10 @@
/* send/receive data payload, if there is any */
/* Genesys Logic interface chips need a 100us delay between the
- * command phase and the data phase */
+ * command phase and the data phase. Some devices need a little
+ * more than that, probably because of clock rate inaccuracies. */
if (us->pusb_dev->descriptor.idVendor == USB_VENDOR_ID_GENESYS)
- udelay(100);
+ udelay(110);
if (transfer_length) {
unsigned int pipe = srb->sc_data_direction == DMA_FROM_DEVICE ?
next prev parent reply other threads:[~2005-01-08 8:29 UTC|newest]
Thread overview: 103+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-08 5:46 [BK PATCH] USB and Driver Core patches for 2.6.10 Greg KH
2005-01-08 5:47 ` [PATCH] " Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH [this message]
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 5:47 ` Greg KH
2005-01-08 12:08 ` Christoph Hellwig
2005-01-08 22:42 ` Greg KH
2005-01-08 23:33 ` Alessandro Suardi
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