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| author | Tobias Waldekranz <[email protected]> | 2021-02-02 19:16:45 +0000 |
|---|---|---|
| committer | Jakub Kicinski <[email protected]> | 2021-02-05 03:09:47 +0000 |
| commit | add285bce37720675af5b1873f71af8561d0e2fe (patch) | |
| tree | 310c81935e04b68c396c93aa4a76f6abf31b9e54 /drivers/net/ethernet/intel/igc/igc_main.c | |
| parent | net: dsa: bcm_sf2: Check egress tagging of CFP rule with proper accessor (diff) | |
| download | kernel-add285bce37720675af5b1873f71af8561d0e2fe.tar.gz kernel-add285bce37720675af5b1873f71af8561d0e2fe.zip | |
net: dsa: xrs700x: Correctly address device over I2C
On read, master should send 31 MSB of the register (only even values
are ever used), followed by a 1 to indicate read. Then, reading two
bytes, the device will output the register's value.
On write, master sends 31 MSB of the register, followed by a 0 to
indicate write, followed by two bytes containing the register value.
Flexibilis' documentation (version 1.3) specifies the opposite
polarity (#read/write), but the scope indicates that it is, in fact,
read/#write.
Signed-off-by: Tobias Waldekranz <[email protected]>
Reviewed-by: George McCollister <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
Diffstat (limited to 'drivers/net/ethernet/intel/igc/igc_main.c')
0 files changed, 0 insertions, 0 deletions