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Message-ID: <4CB365FC.5010603@bayarea.net>
Date: Mon, 11 Oct 2010 20:31:08 +0100
From: Robert Gadsdon <rgadsdon@...area.net>
To: Kernel Mailing List <linux-kernel@...r.kernel.org>
CC: Linux-USB <linux-usb-devel@...ts.sourceforge.net>
Subject: PDA (Clie) USB sync fails with 2.6.25, OK with 2.6.34.1. versions
of visor.c visor.h
Sony Clie USB sync (Jpilot and Kpilot) has been OK for years, but since
2.6.35 (and 2.6.35.6) has failed.
2.6.34.1 (and earlier) works OK.
With 2.6.35, device files are created OK, and LSUSB shows PDA correctly:
# ll /dev/ttyU*
crw-rw---- 1 root uucp 188, 0 Oct 9 17:08 /dev/ttyUSB0
crw-rw---- 1 root uucp 188, 1 Oct 9 17:08 /dev/ttyUSB1
# lsusb
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 04a9:10c9 Canon, Inc.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 002: ID 054c:0144 Sony Corp. Clie PEG-TH55 PDA
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 004: ID 0a81:0101 Chesen Electronics Corp. Keyboard
Bus 003 Device 002: ID 046d:c52b Logitech, Inc.
Bus 003 Device 003: ID 0557:7000 ATEN International Co., Ltd Hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
lsusb -vv seems to contain identical values for both 2.6.34.1 and 2.6.35:
# lsusb -vv
Bus 006 Device 003: ID 054c:0144 Sony Corp. Clie PEG-TH55 PDA
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x054c Sony Corp.
idProduct 0x0144 Clie PEG-TH55 PDA
bcdDevice 1.00
iManufacturer 1 Palm. Inc.
iProduct 2 Palm Handheld
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 46
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xc0
Self Powered
MaxPower 2mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 4
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
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 0
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 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x05 EP 5 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Device Status: 0x0001
Self Powered
But both Jpilot and Kpilot fail to connect-
(timeout, no activity, 'unable to access /dev/ttyUSB0')
Workaround is to copy the 2.6.34.1 versions of visor.c and visor.h to
the 2.6.35 (or 2.6.35.6) code base, and recompile/reinstall. Then
everything works again.
Problem has been reproduced with 2 different Clie PDAs..
Robert Gadsdon.
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