162306a36Sopenharmony_ci 262306a36Sopenharmony_ciWhat: /sys/class/net/<iface>/peak_usb/can_channel_id 362306a36Sopenharmony_ciDate: November 2022 462306a36Sopenharmony_ciKernelVersion: 6.2 562306a36Sopenharmony_ciContact: Stephane Grosjean <s.grosjean@peak-system.com> 662306a36Sopenharmony_ciDescription: 762306a36Sopenharmony_ci PEAK PCAN-USB devices support user-configurable CAN channel 862306a36Sopenharmony_ci identifiers. Contrary to a USB serial number, these identifiers 962306a36Sopenharmony_ci are writable and can be set per CAN interface. This means that 1062306a36Sopenharmony_ci if a USB device exports multiple CAN interfaces, each of them 1162306a36Sopenharmony_ci can be assigned a unique channel ID. 1262306a36Sopenharmony_ci This attribute provides read-only access to the currently 1362306a36Sopenharmony_ci configured value of the channel identifier. Depending on the 1462306a36Sopenharmony_ci device type, the identifier has a length of 8 or 32 bit. The 1562306a36Sopenharmony_ci value read from this attribute is always an 8 digit 32 bit 1662306a36Sopenharmony_ci hexadecimal value in big endian format. If the device only 1762306a36Sopenharmony_ci supports an 8 bit identifier, the upper 24 bit of the value are 1862306a36Sopenharmony_ci set to zero. 1962306a36Sopenharmony_ci 20