mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-19 02:04:19 +08:00
eae9d2ba0c
This patch adds the kernel side of the PPS support currently named "LinuxPPS". PPS means "pulse per second" and a PPS source is just a device which provides a high precision signal each second so that an application can use it to adjust system clock time. Common use is the combination of the NTPD as userland program with a GPS receiver as PPS source to obtain a wallclock-time with sub-millisecond synchronisation to UTC. To obtain this goal the userland programs shoud use the PPS API specification (RFC 2783 - Pulse-Per-Second API for UNIX-like Operating Systems, Version 1.0) which in part is implemented by this patch. It provides a set of chars devices, one per PPS source, which can be used to get the time signal. The RFC's functions can be implemented by accessing to these char devices. Signed-off-by: Rodolfo Giometti <giometti@linux.it> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Greg KH <greg@kroah.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Kay Sievers <kay.sievers@vrfy.org> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Michael Kerrisk <mtk.manpages@googlemail.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
113 lines
3.2 KiB
Makefile
113 lines
3.2 KiB
Makefile
#
|
|
# Makefile for the Linux kernel device drivers.
|
|
#
|
|
# 15 Sep 2000, Christoph Hellwig <hch@infradead.org>
|
|
# Rewritten to use lists instead of if-statements.
|
|
#
|
|
|
|
obj-y += gpio/
|
|
obj-$(CONFIG_PCI) += pci/
|
|
obj-$(CONFIG_PARISC) += parisc/
|
|
obj-$(CONFIG_RAPIDIO) += rapidio/
|
|
obj-y += video/
|
|
obj-$(CONFIG_ACPI) += acpi/
|
|
# PnP must come after ACPI since it will eventually need to check if acpi
|
|
# was used and do nothing if so
|
|
obj-$(CONFIG_PNP) += pnp/
|
|
obj-$(CONFIG_ARM_AMBA) += amba/
|
|
|
|
obj-$(CONFIG_XEN) += xen/
|
|
|
|
# regulators early, since some subsystems rely on them to initialize
|
|
obj-$(CONFIG_REGULATOR) += regulator/
|
|
|
|
# char/ comes before serial/ etc so that the VT console is the boot-time
|
|
# default.
|
|
obj-y += char/
|
|
|
|
# gpu/ comes after char for AGP vs DRM startup
|
|
obj-y += gpu/
|
|
|
|
obj-$(CONFIG_CONNECTOR) += connector/
|
|
|
|
# i810fb and intelfb depend on char/agp/
|
|
obj-$(CONFIG_FB_I810) += video/i810/
|
|
obj-$(CONFIG_FB_INTEL) += video/intelfb/
|
|
|
|
obj-y += serial/
|
|
obj-$(CONFIG_PARPORT) += parport/
|
|
obj-y += base/ block/ misc/ mfd/
|
|
obj-$(CONFIG_NUBUS) += nubus/
|
|
obj-y += macintosh/
|
|
obj-$(CONFIG_IDE) += ide/
|
|
obj-$(CONFIG_SCSI) += scsi/
|
|
obj-$(CONFIG_ATA) += ata/
|
|
obj-y += net/
|
|
obj-$(CONFIG_ATM) += atm/
|
|
obj-$(CONFIG_FUSION) += message/
|
|
obj-$(CONFIG_FIREWIRE) += firewire/
|
|
obj-y += ieee1394/
|
|
obj-$(CONFIG_UIO) += uio/
|
|
obj-y += cdrom/
|
|
obj-y += auxdisplay/
|
|
obj-$(CONFIG_MTD) += mtd/
|
|
obj-$(CONFIG_SPI) += spi/
|
|
obj-$(CONFIG_PCCARD) += pcmcia/
|
|
obj-$(CONFIG_DIO) += dio/
|
|
obj-$(CONFIG_SBUS) += sbus/
|
|
obj-$(CONFIG_ZORRO) += zorro/
|
|
obj-$(CONFIG_MAC) += macintosh/
|
|
obj-$(CONFIG_ATA_OVER_ETH) += block/aoe/
|
|
obj-$(CONFIG_PARIDE) += block/paride/
|
|
obj-$(CONFIG_TC) += tc/
|
|
obj-$(CONFIG_UWB) += uwb/
|
|
obj-$(CONFIG_USB_OTG_UTILS) += usb/otg/
|
|
obj-$(CONFIG_USB) += usb/
|
|
obj-$(CONFIG_USB_MUSB_HDRC) += usb/musb/
|
|
obj-$(CONFIG_PCI) += usb/
|
|
obj-$(CONFIG_USB_GADGET) += usb/gadget/
|
|
obj-$(CONFIG_SERIO) += input/serio/
|
|
obj-$(CONFIG_GAMEPORT) += input/gameport/
|
|
obj-$(CONFIG_INPUT) += input/
|
|
obj-$(CONFIG_I2O) += message/
|
|
obj-$(CONFIG_RTC_LIB) += rtc/
|
|
obj-y += i2c/ media/
|
|
obj-$(CONFIG_PPS) += pps/
|
|
obj-$(CONFIG_W1) += w1/
|
|
obj-$(CONFIG_POWER_SUPPLY) += power/
|
|
obj-$(CONFIG_HWMON) += hwmon/
|
|
obj-$(CONFIG_THERMAL) += thermal/
|
|
obj-$(CONFIG_WATCHDOG) += watchdog/
|
|
obj-$(CONFIG_PHONE) += telephony/
|
|
obj-$(CONFIG_MD) += md/
|
|
obj-$(CONFIG_BT) += bluetooth/
|
|
obj-$(CONFIG_ACCESSIBILITY) += accessibility/
|
|
obj-$(CONFIG_ISDN) += isdn/
|
|
obj-$(CONFIG_EDAC) += edac/
|
|
obj-$(CONFIG_MCA) += mca/
|
|
obj-$(CONFIG_EISA) += eisa/
|
|
obj-y += lguest/
|
|
obj-$(CONFIG_CPU_FREQ) += cpufreq/
|
|
obj-$(CONFIG_CPU_IDLE) += cpuidle/
|
|
obj-y += idle/
|
|
obj-$(CONFIG_MMC) += mmc/
|
|
obj-$(CONFIG_MEMSTICK) += memstick/
|
|
obj-$(CONFIG_NEW_LEDS) += leds/
|
|
obj-$(CONFIG_INFINIBAND) += infiniband/
|
|
obj-$(CONFIG_SGI_SN) += sn/
|
|
obj-y += firmware/
|
|
obj-$(CONFIG_CRYPTO) += crypto/
|
|
obj-$(CONFIG_SUPERH) += sh/
|
|
obj-$(CONFIG_GENERIC_TIME) += clocksource/
|
|
obj-$(CONFIG_DMA_ENGINE) += dma/
|
|
obj-$(CONFIG_DCA) += dca/
|
|
obj-$(CONFIG_HID) += hid/
|
|
obj-$(CONFIG_PPC_PS3) += ps3/
|
|
obj-$(CONFIG_OF) += of/
|
|
obj-$(CONFIG_SSB) += ssb/
|
|
obj-$(CONFIG_VIRTIO) += virtio/
|
|
obj-$(CONFIG_VLYNQ) += vlynq/
|
|
obj-$(CONFIG_STAGING) += staging/
|
|
obj-y += platform/
|
|
obj-y += ieee802154/
|