Re: [PATCH 0/6] si4713 : USB driver

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On Fri 30 August 2013 13:28:18 Dinesh Ram wrote:
> This is a follow-up to the patch-series mailed on 21-Agu-2013 to the mailing list.
> 
> Please note that I will not be reachable at the cisco email id anymore. So please
> send you comments and suggestions to my private email : dinesh.ram@xxxxxxx

For patches 1-5:

Acked-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>

Patch 6 has an issue, so I'll wait for the corrected version before Acking it.

Regards,

	Hans

> 
> All the patches are on top of the latest version of the media-git tree as 
> on 30-August-2013 (10:30 Europe time)
> 
> The main difference to the aforementioned patch series is that, in this series the 
> radio-i2c-si4713.c is renamed to a more appropriate one - radio-platform-si4713.c. 
> Ofcourse, this also involvs corrosponding changes in the Makefile and Kconfig 
> in drivers/media/radio/si4713.
> 
> An entry is also added to the MAINTAINERS file.
> 
> This patch series adds USB support for the SiLabs development board 
> which contains the Si4713 FM transmitter chip. 
> 
> This device can transmit audio through FM. 
> It can transmit RDS and RBDS signals as well.
> 
> Documentation for this product can be accessed here :
> http://www.silabs.com/products/audiovideo/fmtransmitters/Pages/si471213.aspx
> 
> 
> In the source tree, drivers/media/radio has been reorganized to include a new folder 
> drivers/media/radio/si4713 which  contains all the si4713 related files.
> 
> Modified and renamed files :
> -----------------------------------
> drivers/media/radio/si4713-i2c.c ==> drivers/media/radio/si4713/si4713.c
> drivers/media/radio/si4713-i2c.h ==> drivers/media/radio/si4713/si4713.h
> drivers/media/radio/radio-si4713.c ==> drivers/media/radio/si4713/radio-platform-si4713.c
> 
> New files :
> -------------
> drivers/media/radio/si4713/radio-usb-si4713.c
> 
> The existing i2c driver has been modified to add support for cases where the interrupt 
> is not enabled. 
> Checks have been introduced in several places in the code to test if an interrupt is set or not. 
> The development board is plugged into the host through USB and does not use interrupts. 
> To get a valid response, within a specified timeout, the device is polled instead.
> 
> 
> The USB driver has been developed by analyzing the the USB traffic obtained by sniffing the USB bus.
> A bunch of commands are sent during device startup, the specifics of which are not obvious.
> Nevertheless they seem to be necessary for the proper fuctioning of the device.
> 
> Note : The i2c driver assumes a 2-wire bus mode.
> 
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