[gentoo-user] Can't find driver for VGA in kernel source tree

[Lavender <448463782@qq.com>]

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Hello, everyone ! I'm trying to build a kernel 
 manully and there is a problem.
 I use lspci command and it shows my
 VGA card information:
  
 01:00.0 VGA compatible controller:
 ATI Technologies Inc M92 LP 
  
 Then I type
 $ cd /sys/bus/pci/devices/0000:01:00.0
 $ cat vendor
 $ cat device
  
 Now I get the vendor ID 0x1002
 and the device ID 0x9552 for my VGA card
  
 Then I type
 $ grep -i 0x1002 include/linux/pci_ids.h 
 It shows #define PCI_VENDOR_ID_ATI  0x1002
  
 $grep -i 0x9552 include/linux/pci_ids.h
 It shows nothing
 $grep -Rl PCI_VENDOR_ID_ATI
 It prints a lot message, but I should notice
 files in directory drivers/media video and gpu.
 Here are the files in them:
 /drivers/media/video/cx88/cx88-card.c
 /drivers/video/aty/radeon_base.c
 /drivers/video/aty/atyfb_base.c
 /drivers/video/aty/aty128fb.c
 /drivers/drm/radeon/radeon_agp.c
  
 I have searched through these files, but I didn't
 find both 0x1002 and 0x9552 in one file which 
 means these files are not drivers I need.
 If it means that there is no driver for my VGA in 
 kernel source tree ? But my laptop is bought two
 years ago, hardware is not fashion.

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