Character Device Driver

It is a category of the Physical device drivers. A OS/2 Character Device Driver accesses data character oriented, often bytes or streams. Usually these drivers access data sequentially e.g. I/O for special hardware chips, like programmable I/O circuits.

OS/2 assigns names for these drivers e.g. MOUSE$ or LPT1. The driver may support more than one device with the same driver.

A character DD may be replaced by an other one with the same name (it depends on the loading sequence). This means, that such a driver needs to have a mechanism to unload.

Driver Names

• ACPICA$
• AFINET$
• AFOS2$
• APM$
• ASPIROU$
• ATAPI$
• CADH$$$$
• CD-ROM2$
• CHKDSK$
• CLOCK$
• COM1
• COM2
• CON
• DOS$
• GRADD$
• IBMEAN$
• IBM1FLP$
• IBMKBD$
• IBMS506$
• IFNET$
• INET$
• ISAPNP$
• KBD$
• LANMSG$$
• LPT1
• LPT2
• LPT3
• LPTx$
• LVM$
• MIDI$
• MMLEM$
• MOUSE$
• NUL
• OEMHLP$
• OS2DASD$
• POINTER$
• PRN
• PROTMAN$
• R0STUB$
• RESMGR$
• SBAUD1$
• SCREEN$
• SCSIMGR$
• SDDHELP$
• SINGLEQ$
• SSM$
• TESTCFG$
• THESEU5$
• TIMER0$
• UNICODE$
• USBAUD1$
• USBCDRM$
• USBD$
• USBEHCD$
• USBHID$
• USBKBD$
• USBMOU$
• USBMSD$
• USBOHCD$
• USBRESM$
• vboxgs1$
• vboxgst$
• VICAPSH$
• ___HLP$
• $USBPRT