• USBSER.SYS quirks explained
    Hi, I have been wrestling with Microsoft USBSER.SYS as my host driver for an MDK-PRO based Atmel project. We are using the USB CDC ACM middleware from Keil. (4.73 source) I have determined a...
  • USBSER.SYS quirks explained
    Hi, I have been wrestling with Microsoft USBSER.SYS as my host driver for an MDK-PRO based Atmel project. We are using the USB CDC ACM middleware from Keil. (4.73 source) I have determined a...
  • USB CDC class problem with Windows usbser.sys
    Hoping to get some expert advice here, Have an embedded USB application running on a Cortex M4. Application uses full-speed USB and is based on a Freescale-provided CDC USB sample project. My bulk...
  • usbser.sys: ReadFile success with 0 bytes read
    Hello everybody, I am having trouble making Windows API ReadFile function working properly with USB CDC (Communication Device Class) driver. Specifically, I am using CDC drivers supplied with Windows...
  • USB CDC class problem with Windows usbser.sys
    Hoping to get some expert advice here, Have an embedded USB application running on a Cortex M4. Application uses full-speed USB and is based on a Freescale-provided CDC USB sample project. My bulk...