Hi Mauro, hi Sean,
thanks for considering the patch. I have added an updated version at the
end of this mail.
Regarding the info Sean was requesting, it is indeed an xhci hub. I also
added the details of the remote itself.
Please let me know if there is anything missing.
Best wishes,
Martin.
lsusb -vvv
------
Bus 001 Device 002: ID 2304:0225 Pinnacle Systems, Inc. Remote Kit
Infrared Transceiver
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x2304 Pinnacle Systems, Inc.
idProduct 0x0225 Remote Kit Infrared Transceiver
bcdDevice 0.01
iManufacturer 1 Pinnacle Systems
iProduct 2 PCTV Remote USB
iSerial 5 7FFFFFFFFFFFFFFF
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 32
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 3 StandardConfiguration
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 4 StandardInterface
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 10
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 10
Device Status: 0x0000
(Bus Powered)
-----------
>From 67589c156e4b205821dda67f7e96804224c24cb8 Mon Sep 17 00:00:00 2001
From: Martin Kittel <li...@martin-kittel.de>
Date: Wed, 11 Dec 2013 21:08:49 +0100
Subject: [PATCH] mceusb: fix invalid urb interval
With very fast usb hubs it can happen that urbs are processed
in less than a single 126 microsecond interval. Such an urb has
urb->interval set to 0 on receive and s rejected on resubmit.
Make sure urb->interval is reset to its initial value before
resubmitting it.
Signed-off-by: Martin Kittel <li...@martin-kittel.de>
---
drivers/media/rc/mceusb.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/media/rc/mceusb.c b/drivers/media/rc/mceusb.c
index 3c76101..6652f6a 100644
--- a/drivers/media/rc/mceusb.c
+++ b/drivers/media/rc/mceusb.c
@@ -1030,7 +1030,7 @@ static void mceusb_process_ir_data(struct
mceusb_dev *ir, int buf_len)
static void mceusb_dev_recv(struct urb *urb)
{
struct mceusb_dev *ir;
- int buf_len;
+ int buf_len, res;
if (!urb)
return;
@@ -1067,7 +1067,10 @@ static void mceusb_dev_recv(struct urb *urb)
break;
}
- usb_submit_urb(urb, GFP_ATOMIC);
+ urb->interval = ir->usb_ep_out->bInterval; /* reset urb interval */
+ res = usb_submit_urb(urb, GFP_ATOMIC);
+ if (res)
+ mce_dbg(ir->dev, "restart request FAILED! (res=%d)\n", res);
}
static void mceusb_get_emulator_version(struct mceusb_dev *ir)
--
1.8.4.rc3
--
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