Question

Upon receiving a uevent (“U-event”), udev (“U-dev”) loads one of these programs by calling modprobe with the contents of MODALIAS (“mod-alias”). In cooked mode, one of these programs passes input to a line discipline, which then sends data to another one of these programs, as explained in the article “The TTY demystified.” These programs define a table of function pointers, usually including poll and select, in accordance with the file_operations (-5[1])(“file-operations”) struct. Pairs of major and minor numbers identify interfaces to these programs called special files. (-5[2])Whether these programs transmit data byte-by-byte (-5[1])in order or whether (10[1])they send data as randomly accessed chunks (-5[1])determines if they are classified as “character” or “block.” Although these (-5[1])programs can be implemented (-5[1])in user space, traditionally (-5[1])they are kernel modules that control I/O (“I-O”). For 10 points, (-5[1])name these programs used by operating systems (10[1]-5[1])to communicate with hardware (10[2]-5[1])devices. (10[3])■END■ (10[9]0[7])

ANSWER: device drivers [or Linux device drivers; accept TTY drivers or UART (“U-art”) drivers; prompt on kernel modules until “modules”; reject “kernels”]
<Other Science>
= Average correct buzz position

Summary

2023 ACF Nationals04/22/2023Y2370%0%48%136.13

Buzzes

PlayerTeamOpponentBuzz PositionValue
Albert ZhangColumbia BFlorida B66-5
Karan GurazadaTexas AMIT A81-5
Simon GorbatyDuke AFlorida A81-5
Jonathan TranCornell ABrown A87-5
Natan HoltzmanStanford AChicago A9110
Todd MaslykMichigan ARutgers B98-5
Andrew SalijNorthwestern AHarvard A109-5
Alex LiGeorgia Tech AYale A113-5
Eve FleisigUC Berkeley ACornell B117-5
David BassVirginia AYale B127-5
S. A. ShenoyGeorgia Tech BIowa State A13410
John MarvinChicago BWUSTL A134-5
Jacob Van OorschotMcGill AIllinois A13810
Carlos DoebeliImperial AMinnesota B13810
Ian ChowToronto ANorth Carolina A138-5
Aiden DartleyRutgers AClaremont A13910
Michael LiBrown ACornell A13910
Michał GerasimiukYale AGeorgia Tech A13910
Charles HangWUSTL AChicago B14010
Jeya IyaduraiFlorida BColumbia B14010
Henry CafaroChicago CIndiana A14010
Clark SmithOhio State AMaryland A1400
Nat KuNYU AVanderbilt A1400
Gavin MarkoffVanderbilt ANYU A1400
June YinWUSTL BPenn A1400
Joel MilesMinnesota AColumbia A14010
Vittal BhatNorth Carolina AToronto A14010
Seth EbnerJohns Hopkins APurdue A14010
Dan NiCornell BUC Berkeley A14010
Sean DoyleHouston AUC Berkeley B1400
Steven LiuMIT ATexas A14010
Lexi TermanRutgers BMichigan A1400
Caleb KendrickMaryland AOhio State A1400
Leo LawFlorida ADuke A14010