GemAlarm@lemmy.world to Programmer Humor@programming.dev · 2 days agoImportant Messagelemmy.worldimagemessage-square80fedilinkarrow-up1850arrow-down116
arrow-up1834arrow-down1imageImportant Messagelemmy.worldGemAlarm@lemmy.world to Programmer Humor@programming.dev · 2 days agomessage-square80fedilink
minus-squaredeadbeef79000@lemmy.nzlinkfedilinkarrow-up40arrow-down1·2 days agoUSB keyboards yelling into the void in the background hoping to be noticed.
minus-squareSpaceNoodle@lemmy.worldlinkfedilinkarrow-up22arrow-down1·2 days agoThey ain’t even, the host actually polls “interrupt” endpoints
minus-squaredeadbeef79000@lemmy.nzlinkfedilinkarrow-up4·2 days agoCouldn’t quite remember how it worked, just that USB didn’t CPU interrupt:-)
minus-squaremarcos@lemmy.worldlinkfedilinkarrow-up18·2 days agoModern CPUs can manage what interrupts them. Almost nothing actually does. Computers have a CPU just to get in the way of things interrupting the main CPU.
minus-squareInternetCitizen2@lemmy.worldlinkfedilinkarrow-up10·2 days ago Modern CPUs can manage what interrupts them. Almost nothing actually does. Based
minus-squareMonkderVierte@lemmy.ziplinkfedilinkarrow-up2·1 day agoYou have a CPU? Well, i have a CPU in a CPU!
minus-squaredeadbeef79000@lemmy.nzlinkfedilinkarrow-up2·2 days agoI’m remembering from back in the ol’ single core days too. Where an interrupt was, well, an interrupt.
minus-squareSpaceNoodle@lemmy.worldlinkfedilinkarrow-up7·2 days agoIf you want a USB host controller to interrupt your CPU, I can recommend some nice embedded SoCs
USB keyboards yelling into the void in the background hoping to be noticed.
They ain’t even, the host actually polls “interrupt” endpoints
Couldn’t quite remember how it worked, just that USB didn’t CPU interrupt:-)
Modern CPUs can manage what interrupts them. Almost nothing actually does.
Computers have a CPU just to get in the way of things interrupting the main CPU.
Based
You have a CPU? Well, i have a CPU in a CPU!
Yo dawg
I’m remembering from back in the ol’ single core days too. Where an interrupt was, well, an interrupt.
If you want a USB host controller to interrupt your CPU, I can recommend some nice embedded SoCs