Any advice for writing Ruby driver for Hauppauge WinTV-HVR-1150 on Linux?
I'd like to write a driver using Ruby language for a Hauppauge WinTV-HVR-1150 card. I will be attaching an NTSC analog camera to the composite video input and want to stream the video across the internet to a client app that can display it. I've never written a PCI driver. The 1150 card will be attached to an Ubuntu 10.04 box. I'd welcome any ideas or advice to get started. Thanks, --Bob -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: Any advice for writing Ruby driver for Hauppauge WinTV-HVR-1150 on Linux?
On Sat, Aug 6, 2011 at 8:48 PM, Bob Carpenter wrote: > I'd like to write a driver using Ruby language for a Hauppauge WinTV-HVR-1150 > card. > > I will be attaching an NTSC analog camera to the composite video input and > want to stream the video across the internet to a client app that can display > it. > > I've never written a PCI driver. > > The 1150 card will be attached to an Ubuntu 10.04 box. > > I'd welcome any ideas or advice to get started. > > Thanks, > > --Bob Several points: Under Linux, you don't write drivers in Ruby. You write them in C. The HVR-1150 already has a driver under Linux. You probably want to be writing a Ruby application, not a driver. You should probably start by reading the video4linux2 API documentation, which is the kernel API for interacting with tuner drivers. Devin -- Devin J. Heitmueller - Kernel Labs http://www.kernellabs.com -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: Any advice for writing Ruby driver for Hauppauge WinTV-HVR-1150 on Linux?
Thanks for the info. The V4L2 spec is helpful, and the terminology allowed me to do some accurate googling. In fact I found a Ruby extension (hornetseye) that uses the V4L2 driver - I can probably make some progress going down that path. --Bob --- On Sat, 8/6/11, Devin Heitmueller wrote: > From: Devin Heitmueller > Subject: Re: Any advice for writing Ruby driver for Hauppauge WinTV-HVR-1150 > on Linux? > To: "Bob Carpenter" > Cc: linux-media@vger.kernel.org > Date: Saturday, August 6, 2011, 6:04 PM > On Sat, Aug 6, 2011 at 8:48 PM, Bob > Carpenter > wrote: > > I'd like to write a driver using Ruby language for a > Hauppauge WinTV-HVR-1150 card. > > > > I will be attaching an NTSC analog camera to the > composite video input and want to stream the video across > the internet to a client app that can display it. > > > > I've never written a PCI driver. > > > > The 1150 card will be attached to an Ubuntu 10.04 > box. > > > > I'd welcome any ideas or advice to get started. > > > > Thanks, > > > > --Bob > > Several points: > > Under Linux, you don't write drivers in Ruby. You > write them in C. > > The HVR-1150 already has a driver under Linux. > > You probably want to be writing a Ruby application, not a > driver. > > You should probably start by reading the video4linux2 API > documentation, which is the kernel API for interacting with > tuner > drivers. > > Devin > > -- > Devin J. Heitmueller - Kernel Labs > http://www.kernellabs.com > -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
