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UM0851 Datasheet(PDF) 185 Page - STMicroelectronics |
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UM0851 Datasheet(HTML) 185 Page - STMicroelectronics |
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185 / 245 page  UM0851 Human interface device (HID) drivers Doc ID 16604 Rev 2 185/245 Figure 50. ADC driver architecture 7.3.3 ADC usage in Linux ADC can be accessed from two levels in Linux: User level: User level applications must include include/linux/spr_adc_st10_usr.h file to access data types related to ADC. In order to use the ADC at user level you need to create nodes for the ADC. The major number is allocated dynamically to the ADC driver. To obtain the major number of the ADC, run the following command after startup: cat /proc/devices Character devices: 1 mem 2 pty 3 ttyp 4 /dev/vc/0 4 tty 4 ttyS 5 /dev/tty 5 /dev/console 5 /dev/ptmx 7 vcs 9 st 10 misc 13 input 29 fb 89 i2c 90 mtd 128 ptm 136 pts 180 usb 189 usb_device 206 osst 250 usb_endpoint 251 C3 252 spear-adc 254 rtc User space Kernel space Hardware Linux char device framework Linux drivers ADC driver ADC (ST10) IP User application |
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