diff options
| -rw-r--r-- | .SRCINFO | 21 | ||||
| -rw-r--r-- | PKGBUILD | 40 | ||||
| -rw-r--r-- | dkms.conf | 5 | ||||
| -rw-r--r-- | lowlatency.patch | 13 |
4 files changed, 79 insertions, 0 deletions
diff --git a/.SRCINFO b/.SRCINFO new file mode 100644 index 000000000000..771f714a18fc --- /dev/null +++ b/.SRCINFO @@ -0,0 +1,21 @@ +pkgbase = snd-usb-audio-lowlatency-dkms + pkgdesc = snd-usb-audio kernel module modified for low latency + pkgver = 4.17.14 + pkgrel = 1 + url = https://www.kernel.org/ + arch = any + license = GPL2 + depends = dkms + source = https://www.kernel.org/pub/linux/kernel/v4.x/linux-4.17.tar.xz + source = https://www.kernel.org/pub/linux/kernel/v4.x/patch-4.17.14.xz + source = dkms.conf + source = lowlatency.patch + validpgpkeys = ABAF11C65A2970B130ABE3C479BE3E4300411886 + validpgpkeys = 647F28654894E3BD457199BE38DBBDC86092693E + sha256sums = 9faa1dd896eaea961dc6e886697c0b3301277102e5bc976b2758f9a62d3ccd13 + sha256sums = bf4d95df98dc6197024bc2a7c8a8ef5fd3b21495298c7a7a5dbd63c159ea9f17 + sha256sums = 69f325c3af92c4098c9d118b2eab7de76eba691677864f714697bce5f47005e2 + sha256sums = 9da83cbdf8d8202507a45c1cd6c29b45b9e4ff483483d9957c711c0120a78fe5 + +pkgname = snd-usb-audio-lowlatency-dkms + diff --git a/PKGBUILD b/PKGBUILD new file mode 100644 index 000000000000..0f6eb38e9462 --- /dev/null +++ b/PKGBUILD @@ -0,0 +1,40 @@ +# Maintainer: Jonathan Liu <net147@gmail.com> +pkgname=snd-usb-audio-lowlatency-dkms +_basepkgname=snd-usb-audio-lowlatency +_srcname=linux-4.17 +pkgver=4.17.14 +pkgrel=1 +pkgdesc="snd-usb-audio kernel module modified for low latency" +arch=('any') +url="https://www.kernel.org/" +license=('GPL2') +depends=('dkms') +source=( + "https://www.kernel.org/pub/linux/kernel/v4.x/${_srcname}.tar.xz" + "https://www.kernel.org/pub/linux/kernel/v4.x/patch-${pkgver}.xz" + 'dkms.conf' + 'lowlatency.patch' +) +validpgpkeys=( + 'ABAF11C65A2970B130ABE3C479BE3E4300411886' # Linus Torvalds + '647F28654894E3BD457199BE38DBBDC86092693E' # Greg Kroah-Hartman +) +sha256sums=('9faa1dd896eaea961dc6e886697c0b3301277102e5bc976b2758f9a62d3ccd13' + 'bf4d95df98dc6197024bc2a7c8a8ef5fd3b21495298c7a7a5dbd63c159ea9f17' + '69f325c3af92c4098c9d118b2eab7de76eba691677864f714697bce5f47005e2' + '9da83cbdf8d8202507a45c1cd6c29b45b9e4ff483483d9957c711c0120a78fe5') + +prepare() { + cd "${_srcname}" + patch -Np1 -i ../patch-${pkgver} + patch -Np1 -i ../lowlatency.patch +} + +package() { + cd "${_srcname}" + install -Dm644 ../dkms.conf "${pkgdir}/usr/src/${_basepkgname}-${pkgver}/dkms.conf" + sed -e "s/@PKGVER@/${pkgver}/" -i "${pkgdir}/usr/src/${_basepkgname}-${pkgver}/dkms.conf" + cp -a sound/usb/* "${pkgdir}/usr/src/${_basepkgname}-${pkgver}/" +} + +# vim:set ts=2 sw=2 et: diff --git a/dkms.conf b/dkms.conf new file mode 100644 index 000000000000..6ac3f1564871 --- /dev/null +++ b/dkms.conf @@ -0,0 +1,5 @@ +PACKAGE_NAME="snd-usb-audio-lowlatency" +PACKAGE_VERSION="@PKGVER@" +BUILT_MODULE_NAME[0]="snd-usb-audio" +DEST_MODULE_LOCATION[0]="/updates" +AUTOINSTALL="yes" diff --git a/lowlatency.patch b/lowlatency.patch new file mode 100644 index 000000000000..0fcf60f85a86 --- /dev/null +++ b/lowlatency.patch @@ -0,0 +1,13 @@ +--- a/sound/usb/card.h ++++ b/sound/usb/card.h +@@ -3,8 +3,8 @@ + #define __USBAUDIO_CARD_H + + #define MAX_NR_RATES 1024 +-#define MAX_PACKS 6 /* per URB */ +-#define MAX_PACKS_HS (MAX_PACKS * 8) /* in high speed mode */ ++#define MAX_PACKS 1 /* per URB */ ++#define MAX_PACKS_HS (MAX_PACKS * 1) /* in high speed mode */ + #define MAX_URBS 12 + #define SYNC_URBS 4 /* always four urbs for sync */ + #define MAX_QUEUE 18 /* try not to exceed this queue length, in ms */ |