From f146c7bc85a51f95c05e0f8173d484eb301ece78 Mon Sep 17 00:00:00 2001 From: Danilo Krummrich Date: Thu, 13 Aug 2026 18:52:04 +0200 Subject: PCI: Add pci_irq_type() to query the allocated interrupt type Add a helper that returns PCI_IRQ_MSIX, PCI_IRQ_MSI, or PCI_IRQ_INTX based on the interrupt type the PCI core selected after pci_alloc_irq_vectors(). Several drivers already open-code this check against pdev->msix_enabled and pdev->msi_enabled, or even open code this helper [1]. A common helper avoids the duplication and keeps drivers from accessing the bitfield directly (see also [2]). Acked-by: Bjorn Helgaas Tested-by: John Hubbard Link: https://elixir.bootlin.com/linux/v7.1/source/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c#L196 [1] Inspired-by: John Hubbard Link: https://lore.kernel.org/all/DKKG2QM3YJYB.Z2H2B2UXJ75N@kernel.org/ [2] Reviewed-by: Gary Guo Link: https://patch.msgid.link/20260813165234.620555-5-dakr@kernel.org [ Add missing pci_irq_type() stub for CONFIG_PCI=n. ] Signed-off-by: Danilo Krummrich --- .../ABI/testing/sysfs-class-led-trigger-tty | 62 ++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-class-led-trigger-tty (limited to 'Documentation/ABI/testing/sysfs-class-led-trigger-tty') diff --git a/Documentation/ABI/testing/sysfs-class-led-trigger-tty b/Documentation/ABI/testing/sysfs-class-led-trigger-tty new file mode 100644 index 000000000..308fbc362 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-led-trigger-tty @@ -0,0 +1,62 @@ +What: /sys/class/leds//ttyname +Date: Dec 2020 +KernelVersion: 5.10 +Contact: linux-leds@vger.kernel.org +Description: + Specifies the tty device name of the triggering tty + +What: /sys/class/leds//rx +Date: February 2024 +KernelVersion: 6.8 +Description: + Signal reception (rx) of data on the named tty device. + If set to 0, the LED will not blink on reception. + If set to 1 (default), the LED will blink on reception. + +What: /sys/class/leds//tx +Date: February 2024 +KernelVersion: 6.8 +Description: + Signal transmission (tx) of data on the named tty device. + If set to 0, the LED will not blink on transmission. + If set to 1 (default), the LED will blink on transmission. + +What: /sys/class/leds//cts +Date: February 2024 +KernelVersion: 6.8 +Description: + CTS = Clear To Send + DCE is ready to accept data from the DTE. + If the line state is detected, the LED is switched on. + If set to 0 (default), the LED will not evaluate CTS. + If set to 1, the LED will evaluate CTS. + +What: /sys/class/leds//dsr +Date: February 2024 +KernelVersion: 6.8 +Description: + DSR = Data Set Ready + DCE is ready to receive and send data. + If the line state is detected, the LED is switched on. + If set to 0 (default), the LED will not evaluate DSR. + If set to 1, the LED will evaluate DSR. + +What: /sys/class/leds//dcd +Date: February 2024 +KernelVersion: 6.8 +Description: + DCD = Data Carrier Detect + DTE is receiving a carrier from the DCE. + If the line state is detected, the LED is switched on. + If set to 0 (default), the LED will not evaluate CAR (DCD). + If set to 1, the LED will evaluate CAR (DCD). + +What: /sys/class/leds//rng +Date: February 2024 +KernelVersion: 6.8 +Description: + RNG = Ring Indicator + DCE has detected an incoming ring signal on the telephone + line. If the line state is detected, the LED is switched on. + If set to 0 (default), the LED will not evaluate RNG. + If set to 1, the LED will evaluate RNG. -- cgit v1.3.1