diff options
Diffstat (limited to 'Documentation/ABI/testing/sysfs-driver-aspeed-uart-routing')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-driver-aspeed-uart-routing | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-driver-aspeed-uart-routing b/Documentation/ABI/testing/sysfs-driver-aspeed-uart-routing new file mode 100644 index 0000000000..910df0e581 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-aspeed-uart-routing @@ -0,0 +1,27 @@ +What: /sys/bus/platform/drivers/aspeed-uart-routing/\*/uart\* +Date: September 2021 +Contact: Oskar Senft <osk@google.com> + Chia-Wei Wang <chiawei_wang@aspeedtech.com> +Description: Selects the RX source of the UARTx device. + + When read, each file shows the list of available options with currently + selected option marked by brackets "[]". The list of available options + depends on the selected file. + + e.g. + cat /sys/bus/platform/drivers/aspeed-uart-routing/\*.uart_routing/uart1 + [io1] io2 io3 io4 uart2 uart3 uart4 io6 + + In this case, UART1 gets its input from IO1 (physical serial port 1). + +Users: OpenBMC. Proposed changes should be mailed to + openbmc@lists.ozlabs.org + +What: /sys/bus/platform/drivers/aspeed-uart-routing/\*/io\* +Date: September 2021 +Contact: Oskar Senft <osk@google.com> + Chia-Wei Wang <chiawei_wang@aspeedtech.com> +Description: Selects the RX source of IOx serial port. The current selection + will be marked by brackets "[]". +Users: OpenBMC. Proposed changes should be mailed to + openbmc@lists.ozlabs.org |