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Design of Embedded system

on March 30, 2011

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Design of embedded systems

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Embedded Systems Presentation

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Implementing a new system call in Kernel version 2.6.32

A system call is used by application or user programs to request service from the operating systems. Since the user programs does not have direct access to the kernel whereas the OS has the direct access. OS can access the hardware through system calls only. The following files has to be modified for implementing a system call /usr/src/linux-2.6.32.5/arch/x86/kernel/syscall_table_32.S /usr/src/linux-2.6.32.5/arch/x86/include/asm/unistd_32.h /usr/src/linux-2.6.32.5/include/linux/syscalls.h /usr/src/linux-2.6.32.5/Makefile New set of files to be created Create a new directory newcall/ inside the path “ /usr/src/linux-2.6.32.5/ ” Create new files Makefile, newcall.c and put them in the /usr/src/linux-2.6.32.5/newcall/ folder Create new user files (in any folder of Linux) to test the system call testnewcall.c, testnewcall.h (created in /home/pradeepkumar ) syscall_table_32.S Find the file /usr/src/linux-2.6.32.5/arch/x86/kernel/syscall_tab

Idhayam oru Koyil song | flute notes

Idhayam oru kovul is one of the soothing song by Ilaiyaraja and its easy also to play in flute with the following notes. Both Western and Carnatic notes are included here. Follow the video on, how the song look like Song: Idhayam oru kovil Film: Idhaya kovil Notes: s r2 g3 p d2 n3 S idhayam oru koavil adhil udhayam oru paadal p.d.s ss r g g g p.d.s ss r g G.A.C CC D E E E G.A.C CC D E idhil vaa..zhum dhaevi nee g g g2g g2g r s n.d. E E D#E D#E D C B.A. isaiyai malaraay naanum soottuvaen rr1 r r r1 r p p g2 r s DC# D D C# D G G D# D C (idhayam oru) Stanza 1: aathma raagam on..rildhaan vaazhum uyirgal enrumae gp p pd p grs g r gp pS dd p grs s EG G GA G EDC E D EG GC+ AA G EDC C uyirin jeeva naa..didhaan raagam thaalam aa..nadhae gp p pd p grs g r gp pn d p grs s s EG G GA G EDC E D EG GB A G EDC C C uyiril kalandhu paadumboadhu edhuvum paadalae gg gp g g2 g2 g gp gg2 g2 gp pn2

Flute Notes for Pottu Vaitha oru Vatta Nila (பொட்டு வைத்த ஒரு வட்ட நிலா)

Pottu Vaitha Our Vatta Nila song rendition in Flute during the #Lockdown . Music Notes for the above song is : Song: Pottu vaiththa Film: Idhayam --------------------------------------------------------------------- Legend for the notes: s = sa = C r1 = ri 1 = C# r2 = ri 2 = D g2 = ga 2 = D# g3 = ga 3 = E m1 = ma 1 = F m2 = ma 2 = F# p = pa = G d1 = da 1 = G# d2 = da 2 = A n2 = ni 2 = A# n3 = ni 3 = B S = sa = C [next octave; higher "sa"] R1 ... pottu vaiththa oru vatta nila s s s p. ss r r r d. kulir punnagaiyil enai thotta nila r r g g m gr rs s s s s en manadhil ambu vitta nila s s s p. s s r r r d. idhu etta nindru enai sutta nila rr g g m gr rs s s s s vazhnaal thorum p d p mg r dhinandhaan kaadhoram g m p dp mg r paadal koorum p dnS ndpmgr (pottu) Stanza 1: aaraadha aasaigal thondrum enai thoondum p p p p p pr mg g gr mg g aanaalum vaai pesa anjum indha nenjam p p p p p

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Design of Embedded system

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