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    SubjectRe: [PATCH 3/3] Blackfin serial driver: this driver enable SPORTs on Blackfin emulate UART
    Date
    On Mon 15 Oct 2007 16:33, Andrew Morton pondered:
    >
    > > Subject: [PATCH 3/3] Blackfin serial driver: this driver enable SPORTs
    > on Blackfin emulate UART
    >
    > That's a bit hard to parse.
    >

    Blackfin's have a synchronous Serial Peripheral pORT (SPORT).

    Unlike SPI, UART, I2C, or CAN interfaces which are designed for specific
    industry standard compatible communication only, the SPORT support a variety
    (software programmable) serial data communication protocols:
    - A-law or µ-law companding according to G.711 specification
    - Multichannel or Time-Division-Multiplexed (TDM) modes
    - Stereo Audio I2S Mode
    - TDM Modes for Multi-Channel audio codecs
    - H.100 Telephony standard support
    - others, but if anyone really cares, they need to read the chip specs...

    Bryan's patch takes the SPORT, and makes a standard UART out of it
    (exposing /dev/ttySS0) for those people who don't have enough hardware UARTs
    in their system.

    Is it a SPORT driver that emulates a UART, or a UART driver on the SPORT? I
    think it is the latter...

    Maybe:

    [PATCH 3/3] Blackfin serial driver: enables a UART interface for the SPORT


    Which still doesn't make any sense, until you know what a SPORT is :)

    -Robin
    -
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