GemAlarm@lemmy.world to Programmer Humor@programming.dev · 9 天前Important Messagelemmy.worldimagemessage-square81linkfedilinkarrow-up1901arrow-down117
arrow-up1884arrow-down1imageImportant Messagelemmy.worldGemAlarm@lemmy.world to Programmer Humor@programming.dev · 9 天前message-square81linkfedilink
minus-squaredeadbeef79000@lemmy.nzlinkfedilinkarrow-up41arrow-down1·9 天前USB keyboards yelling into the void in the background hoping to be noticed.
minus-squareSpaceNoodle@lemmy.worldlinkfedilinkarrow-up22arrow-down1·9 天前They ain’t even, the host actually polls “interrupt” endpoints
minus-squaredeadbeef79000@lemmy.nzlinkfedilinkarrow-up4·9 天前Couldn’t quite remember how it worked, just that USB didn’t CPU interrupt:-)
minus-squaremarcos@lemmy.worldlinkfedilinkarrow-up18·9 天前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.
minus-squareInternetCitizen2@lemmy.worldlinkfedilinkarrow-up10·9 天前 Modern CPUs can manage what interrupts them. Almost nothing actually does. Based
minus-squaredeadbeef79000@lemmy.nzlinkfedilinkarrow-up2·9 天前I’m remembering from back in the ol’ single core days too. Where an interrupt was, well, an interrupt.
minus-squareMonkderVierte@lemmy.ziplinkfedilinkarrow-up2·9 天前You have a CPU? Well, i have a CPU in a CPU!
minus-squareSpaceNoodle@lemmy.worldlinkfedilinkarrow-up7·9 天前If 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
I’m remembering from back in the ol’ single core days too. Where an interrupt was, well, an interrupt.
You have a CPU? Well, i have a CPU in a CPU!
Yo dawg
If you want a USB host controller to interrupt your CPU, I can recommend some nice embedded SoCs