[mythtv-users] HD PVR and IR transmitter for channel change (why)
Brian Wood
beww at beww.org
Fri Dec 17 00:05:39 UTC 2010
On Thursday, December 16, 2010 04:50:21 pm Ramin K wrote:
> On 12/16/2010 3:29 PM, Brian Wood wrote:
> > Hmm, I get 2040:4900 and the sticker says C1, this was bought
> > shortly after they became available.
> >
> > Seems like they must have *some* reason for changing things. Guess
> > I'm just curious.
>
> The only difference between them when walking the usb tree is the
> Serial, Product, and urbnum which is randomly assigned.
>
> udevadm info -a -p $(udevadm info -q path -n /dev/video1)
> Here's the one for a 4903. I wonder if you see see any difference
> between it and the 4900 you have.
>
> looking at parent device
> '/devices/pci0000:00/0000:00:09.0/0000:06:00.0/0000:07:00.2/usb4/4-4'
> : KERNELS=="4-4"
> SUBSYSTEMS=="usb"
> DRIVERS=="usb"
> ATTRS{configuration}==""
> ATTRS{bNumInterfaces}==" 1"
> ATTRS{bConfigurationValue}=="1"
> ATTRS{bmAttributes}=="c0"
> ATTRS{bMaxPower}==" 4mA"
> ATTRS{urbnum}=="1688"
> ATTRS{idVendor}=="2040"
> ATTRS{idProduct}=="4903"
> ATTRS{bcdDevice}=="0000"
> ATTRS{bDeviceClass}=="00"
> ATTRS{bDeviceSubClass}=="00"
> ATTRS{bDeviceProtocol}=="00"
> ATTRS{bNumConfigurations}=="1"
> ATTRS{bMaxPacketSize0}=="64"
> ATTRS{speed}=="480"
> ATTRS{busnum}=="4"
> ATTRS{devnum}=="16"
> ATTRS{devpath}=="4"
> ATTRS{version}==" 2.00"
> ATTRS{maxchild}=="0"
> ATTRS{quirks}=="0x0"
> ATTRS{avoid_reset_quirk}=="0"
> ATTRS{authorized}=="1"
> ATTRS{manufacturer}=="AMBA"
> ATTRS{product}=="Hauppauge HD PVR"
> ATTRS{serial}=="xxxxxxx"
>
> Ramin
I get:
looking at device
'/devices/pci0000:00/0000:00:02.1/usb1/1-1/1-1:1.0/video4linux/video2':
KERNEL=="video2"
SUBSYSTEM=="video4linux"
DRIVER==""
ATTR{name}=="Hauppauge HD PVR"
ATTR{index}=="0"
looking at parent device
'/devices/pci0000:00/0000:00:02.1/usb1/1-1/1-1:1.0':
KERNELS=="1-1:1.0"
SUBSYSTEMS=="usb"
DRIVERS=="hdpvr"
ATTRS{bInterfaceNumber}=="00"
ATTRS{bAlternateSetting}==" 0"
ATTRS{bNumEndpoints}=="02"
ATTRS{bInterfaceClass}=="ff"
ATTRS{bInterfaceSubClass}=="02"
ATTRS{bInterfaceProtocol}=="00"
ATTRS{modalias}=="usb:v2040p4900d0000dc00dsc00dp00icFFisc02ip00"
ATTRS{supports_autosuspend}=="0"
looking at parent device '/devices/pci0000:00/0000:00:02.1/usb1/1-1':
KERNELS=="1-1"
SUBSYSTEMS=="usb"
DRIVERS=="usb"
ATTRS{configuration}==""
ATTRS{bNumInterfaces}==" 1"
ATTRS{bConfigurationValue}=="1"
ATTRS{bmAttributes}=="c0"
ATTRS{bMaxPower}==" 4mA"
ATTRS{urbnum}=="27"
ATTRS{idVendor}=="2040"
ATTRS{idProduct}=="4900"
ATTRS{bcdDevice}=="0000"
ATTRS{bDeviceClass}=="00"
ATTRS{bDeviceSubClass}=="00"
ATTRS{bDeviceProtocol}=="00"
ATTRS{bNumConfigurations}=="1"
ATTRS{bMaxPacketSize0}=="64"
ATTRS{speed}=="480"
ATTRS{busnum}=="1"
ATTRS{devnum}=="5"
ATTRS{version}==" 2.00"
ATTRS{maxchild}=="0"
ATTRS{quirks}=="0x0"
ATTRS{authorized}=="1"
ATTRS{manufacturer}=="AMBA"
ATTRS{product}=="Hauppauge HD PVR"
ATTRS{serial}=="00A1DC34"
Some differences, but I do not know enough to interpret them.
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