On 04.06.2021 00:15:50, Vincent Mailhol wrote: > Add the netlink interface for TDC parameters of struct can_tdc_const > and can_tdc. > > Contrary to the can_bittiming(_const) structures for which there is > just a single IFLA_CAN(_DATA)_BITTMING(_CONST) entry per structure, > here, we create a nested entry IFLA_CAN_TDC. Within this nested entry, > additional IFLA_CAN_TDC_TDC* entries are added for each of the TDC > parameters of the newly introduced struct can_tdc_const and struct > can_tdc. > > For struct can_tdc_const, these are: > IFLA_CAN_TDC_TDCV_MAX > IFLA_CAN_TDC_TDCO_MAX > IFLA_CAN_TDC_TDCF_MAX > > For struct can_tdc, these are: > IFLA_CAN_TDC_TDCV > IFLA_CAN_TDC_TDCO > IFLA_CAN_TDC_TDCF I just noticed in the mcp2518fd data sheet: | bit 14-8 TDCO[6:0]: Transmitter Delay Compensation Offset bits; | Secondary Sample Point (SSP) Two’s complement; offset can be positive, | zero, or negative. | | 011 1111 = 63 x TSYSCLK | ... | 000 0000 = 0 x TSYSCLK | ... | 111 1111 = –64 x TSYSCLK Have you takes this into account? regards, Marc -- Pengutronix e.K. | Marc Kleine-Budde | Embedded Linux | https://www.pengutronix.de | Vertretung West/Dortmund | Phone: +49-231-2826-924 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
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