diff options
| author | Dan Murphy <DMurphy@ti.com> | 2014-11-13 08:33:21 -0600 |
|---|---|---|
| committer | Dan Murphy <DMurphy@ti.com> | 2014-11-13 08:33:21 -0600 |
| commit | 725e21d2909742287c8017b6d6407c4050dc622e (patch) | |
| tree | a7107999a28bd86fffdfdd84687f5657f4b599f3 /Documentation | |
| parent | 394a74458ff34b2e236b874f45bb27d8b8708e72 (diff) | |
| parent | 035e802ab56981dedd8fb65d416b9859ff501cf5 (diff) | |
Merge branch 'connectivity-ti-linux-3.14.y' of git://git.ti.com/connectivity-integration-tree/connectivity-ti-linux-kernel into ti-linux-3.14.y
TI-Feature: connectivity
TI-Tree: git://git.ti.com/connectivity-integration-tree/connectivity-ti-linux-kernel.git
TI-Branch: connectivity-ti-linux-3.14.y
* 'connectivity-ti-linux-3.14.y' of git://git.ti.com/connectivity-integration-tree/connectivity-ti-linux-kernel: (26 commits)
ARM: dts: dra7xx-evm: qspi: fix file-system memory size
tty: serial: 8250: omap: Add pinctrl support for suspend
arm: dts: dra7: add DMA properties for UART
arm: dts: am33xx: add DMA properties for UART
tty: serial: 8250: omap: add dma support
tty: serial: 8250: omap: add custom irq handling
tty: serial: 8250_omap: add custom DMA-RX callback
tty: serial: 8250_omap: add custom DMA-TX callback
tty: serial: 8250: allow to use custom DMA implementation
tty: serial: 8250_dma: keep own book keeping about RX transfers
tty: serial: 8250_dma: handle error on TX submit
tty: serial: Add 8250-core based omap driver
tty: serial: 8250: make serial8250_console_setup() non _init
tty: serial: 8250: Fix wording in runtime-PM comments
dmaengine: edma: check for echan->edesc => NULL in edma_dma_pause()
tty: serial: 8250_core: remove UART_IER_RDI in serial8250_stop_rx()
tty: serial: 8250_core: use the ->line argument as a hint in serial8250_find_match_or_unused()
tty: serial: 8250_core: read only RX if there is something in the FIFO
tty: serial: 8250_core: add run time pm
serial: 8250: Clean up the locking for -rt
...
Signed-off-by: Dan Murphy <DMurphy@ti.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-tty | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-tty b/Documentation/ABI/testing/sysfs-tty index ad22fb0ee76..9eb3c2b6b04 100644 --- a/Documentation/ABI/testing/sysfs-tty +++ b/Documentation/ABI/testing/sysfs-tty @@ -138,3 +138,19 @@ Description: These sysfs values expose the TIOCGSERIAL interface via sysfs rather than via ioctls. + +What: /sys/class/tty/ttyS0/rx_trig_bytes +Date: May 2014 +Contact: Yoshihiro YUNOMAE <yoshihiro.yunomae.ez@hitachi.com> +Description: + Shows current RX interrupt trigger bytes or sets the + user specified value to change it for the FIFO buffer. + Users can show or set this value regardless of opening the + serial device file or not. + + The RX trigger can be set one of four kinds of values for UART + serials. When users input a meaning less value to this I/F, + the RX trigger is changed to the nearest lower value for the + device specification. For example, when user sets 7bytes on + 16550A, which has 1/4/8/14 bytes trigger, the RX trigger is + automatically changed to 4 bytes. |