IR blasting with Topseed transeiver (0x1784, 0x0008)

[Chris F. <chr...@di...>]

Hi,

This is in response to the following thread.

http://sourceforge.net/mailarchive/message.php?msg_name=AMG%24bLd9UOB%40bartelmus.de

I have tried testing the transmit function of Topseed device (0x1784, 0x0008).
I have used the exact same config and get my other Topseed device working
(0x1784, 0x0001).  But it failed on two of my 0x0008 devices.

When the usb device is inserted, I noticed there is some probing error regarding
"invalid bInterval".

-----------------
usb 4-2: new full speed USB device using uhci_hcd and address 35
usb 4-2: config 1 interface 0 altsetting 0 endpoint 0x1 has an invalid bInterval 0, changing to 32
usb 4-2: config 1 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 32
usb 4-2: configuration #1 chosen from 1 choice
lirc_dev: IR Remote Control driver registered, major 61 

lirc_mceusb2: Philips eHome USB IR Transceiver and Microsoft MCE 2005 Remote Control driver for LIRC $Revision: 1.44 $
lirc_mceusb2: Daniel Melander <li...@ra...>, Martin Blatter <mar...@ya...>
usb 4-2: reset full speed USB device using uhci_hcd and address 35
lirc_dev: lirc_register_plugin: sample_rate: 0
lirc_mceusb2[35]: Topseed Technology Corp. eHome Infrared Transceiver on usb4:35
usbcore: registered new interface driver lirc_mceusb2


I can then use this device to receive IR with no problem.  But when trying to
issue irsend command (the same command works on 0x0001 device), I got nothing
unexpected from the logs.

--------------------
lircd: lircd(mceusb2) ready
lircd: accepted new client on /dev/lircd
lircd: removed client
lircd: accepted new client on /dev/lircd
lircd: removed client
lircd: accepted new client on /dev/lircd
lircd: removed client
lircd: accepted new client on /dev/lircd
lircd: removed client
lircd: accepted new client on /dev/lircd
lircd: removed client


Here is an output of lsusb
--------------------
Bus 004 Device 035: ID 1784:0008  
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0         8
  idVendor           0x1784 
  idProduct          0x0008 
  bcdDevice            1.00
  iManufacturer           1 Topseed Technology Corp.
  iProduct                2 eHome Infrared Transceiver
  iSerial                 3 TS0000PP
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           32
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0xa0
      Remote Wakeup
    MaxPower              100mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x01  EP 1 OUT
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0020  1x 32 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0020  1x 32 bytes
        bInterval               0


As a comparison, here is an output of lsusb for the 0x0001 device.  Noticed
there is some attributes differences (e.g. transfer type, size.. etc.)
----------------------------

Bus 004 Device 032: ID 1784:0001  
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        16
  idVendor           0x1784 
  idProduct          0x0001 
  bcdDevice            0.00
  iManufacturer           1 Topseed
  iProduct                2 eHome Infrared Transceiver
  iSerial                 3 TS0003V1
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           32
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0xa0
      Remote Wakeup
    MaxPower              100mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x01  EP 1 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0010  1x 16 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0010  1x 16 bytes
        bInterval               0

Any idea why transmitting function is not working on the 0x0008 device?

Thanks,

--Chris