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drivers/enc28j60: Allow sending with empty chunks

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This commit allows `netdev_driver_t::send()` of `enc28j60` to be passed an
`iolist_t` containing one or more empty elements.
This commit is contained in:
Marian Buschsieweke 2019-03-20 09:57:45 +01:00
parent c99c0f61ab
commit f5cd25bdab
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GPG Key ID: 61F64C6599B1539F
1 changed files with 8 additions and 6 deletions
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2
drivers/enc28j60/enc28j60.c
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@ -217,6 +217,7 @@ static void cmd_rbm(enc28j60_t *dev, uint8_t *data, size_t len)
static void cmd_wbm(enc28j60_t *dev, uint8_t *data, size_t len) static void cmd_wbm(enc28j60_t *dev, uint8_t *data, size_t len)
{ {
if (len) {
/* start transaction */ /* start transaction */
spi_acquire(SPI_BUS, CS_PIN, SPI_MODE_0, SPI_CLK); spi_acquire(SPI_BUS, CS_PIN, SPI_MODE_0, SPI_CLK);
/* transfer data */ /* transfer data */
@ -224,6 +225,7 @@ static void cmd_wbm(enc28j60_t *dev, uint8_t *data, size_t len)
/* finish SPI transaction */ /* finish SPI transaction */
spi_release(SPI_BUS); spi_release(SPI_BUS);
} }
}
static void mac_get(enc28j60_t *dev, uint8_t *mac) static void mac_get(enc28j60_t *dev, uint8_t *mac)
{ {