linux-kernel - [PATCH 1/1] W1: ds2490: Increase timeout when waiting for status

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Message-Id: <1414239973-4819-1-git-send-email-alexanders83@web.de>
Date:	Sat, 25 Oct 2014 14:26:13 +0200
From:	Alexander Stein <alexanders83@....de>
To:	Evgeniy Polyakov <zbr@...emap.net>
Cc:	Alexander Stein <alexanders83@....de>,
	linux-kernel@...r.kernel.org, David Fries <David@...es.net>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: [PATCH 1/1] W1: ds2490: Increase timeout when waiting for status

Adjust the bulk message timeout to the other ones (1000ms). Otherwise the
following dmesg errors can be seen on a Raspberry Pi:
[   31.492386] Failed to read 1-wire data from 0x81: err=-110.
[   31.504168] 0x81: count=-110, status:
[   31.613404] Failed to read 1-wire data from 0x81: err=-110.
[   31.621915] 0x81: count=-110, status:
[   43.260968] Failed to read 1-wire data from 0x81: err=-110.
[   43.270998] 0x81: count=-110, status:
[   43.379959] Failed to read 1-wire data from 0x81: err=-110.
[   43.388854] 0x81: count=-110, status:

Signed-off-by: Alexander Stein <alexanders83@....de>
---
 drivers/w1/masters/ds2490.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/w1/masters/ds2490.c b/drivers/w1/masters/ds2490.c
index 1de6df8..049a884 100644
--- a/drivers/w1/masters/ds2490.c
+++ b/drivers/w1/masters/ds2490.c
@@ -253,7 +253,7 @@ static int ds_recv_status_nodump(struct ds_device *dev, struct ds_status *st,
 
 	count = 0;
 	err = usb_interrupt_msg(dev->udev, usb_rcvintpipe(dev->udev,
-		dev->ep[EP_STATUS]), buf, size, &count, 100);
+		dev->ep[EP_STATUS]), buf, size, &count, 1000);
 	if (err < 0) {
 		pr_err("Failed to read 1-wire data from 0x%x: err=%d.\n",
 		       dev->ep[EP_STATUS], err);
-- 
2.1.2

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